I am not related, subscribe to this county board. I could not find the Knight's in the 1850 Georgia census.

Georgia Marriages to 1850
Source: Ancestry.com

Name: Rhoda Arrington
Spouse: Nancel Knight
Marriage Date: 8 Jul 1839
Marriage County: Talbot
Marriage State: Georgia

Record obviously mistranscribed.

LDS website has Individual record for Rhoda Arrington born appx 1822 GA and married Daniel B Knight. She died 17 Aug 1888 Camp county TX. Daniel B Knight, 6 Apr 1818, born Richmond Co GA, per LDS website, died 31 Dec 1898 Camp Co TX. Most of the 1890 census burned in 1921.

http://www.familysearch.org

Calvan Knight & Sarah Cox 2 May 1839 Talbot
Peter W Arrington & Sarah Harden 4 Jan 1838 Talbot
Stephen Arrington & Mariah Theat 7 Mar 1837 Talbot
Hillery Arrington & Jane E Dozier 16 Dec 1841 Talbot
Pleasant G Arrington & Josephine M Jenkins 21 Jan 1845 Talbot

1840, Talbot GA
C H Knight age 20 to 30 [1810 - 1820]
one female under 5
one female 15 to 20

David Knight age 20 to 30 [1810 - 1820]
one male age 10/15
one male age under 5
one female age 15/20

William Knight age 20/30 - same page with David
two males under 5
one female 20/30
one female 10/15

David Knight listed between following Arrington's

John Arrington age 20/30
James Arrington age 50/60

Also a Jesse Arrington in Talbot in 1840 age 20/30

. . . only Knight in 1840 record listed as Daniel

1840; Census Place: Morgan, Georgia; Roll: 47; Page: 227.
Daniell Knight age 30 to 40 [1800-1810]
one male 10/15 [1825-1830]
one male 5/10 [1830-1835]
one female age 30 to 40
one female 10/15
one female 5/10
one female under 5
7 slaves
2 persons engaged in agriculture

1840, District 280, Morgan, GA
Ursley Knight age 15/20

1860; Census Place: District 121, Richmond, Georgia; Roll: M653_135; Page: 974; Image: 403.
Daniel B Knight 1818 SC
Rhoda Knight 1820 GA
James J Knight 1840 GA
Thomas J Knight 1842 GA
Mary F Knight 1844 GA
Hillery W Knight 1846 GA male
John D Knight 1848 GA
Daniel B Knight 1852 GA
Robert W Knight 1854 GA
Jonathan E Knight 1856 GA
Jesse K Knight 1858 GA
Sarah E Knight 1860 GA

1870; Census Place: District 83, Jefferson, Georgia; Roll: M593_160; Page: 106; Image: 216. Post Office: Bethany
Daniel B Knight 1818 SC
Rhodia Knight 1822 GA
Daniel D/B Knight 1851 GA
Robert W Knight 1853 GA
Edward J Knight 1855 GA...aka Johnathan Edward
Jesse K Knight 1857 GA
Sarah E Knight 1859 GA
George W Knight 1861 GA
David L Knight 1863 GA

James J Knight 1840 GA
Laura B Knight 1852 GA
Henry D Knight 1867 GA
Henry D Knight 1847 GA...aka John D Knight ?

Was Johnathan Knight born 1820 SC and William Knight born 1816 SC brothers of Daniel who stopped off in AL and AR before arriving in Wood county ?

1880 Wood Co
Daniel B Knight born circa 1817 SC parents SC
Roda Arrington Knight born circa 1820 GA
Jesse K born circa 1858 GA
Sarah E born circa 1861 GA
George born circa 1862 GA
David Lee born circa 1864 GA

John B Knight 1848 GA divorced or married within the year was listed as single
Mary Alice dtr 1870 GA
John T son 1872 GA
Sarah C? Knight 1855 GA was listed as daughter line drawn through that
Ludelia 1877 TX daughter

Hilery W Knight 1846 GA
Feny ? wife 1844 or 1854 ? AR

James J Knight 1845 GA - actually born abt 1840 married abt 1866 GA
Laura wife 1851 GA
Henry D son 1870 GA was age 3 in 1870 record
Era G dtr 1872 TX
Mary L dtr 1874 TX
James G son 1877 TX
Johnathan E son born Jan 1880 TX
James G Johnson 1853 GA bro in law

For researching purposes you should know that the Wood county courthouse had at least two fires.

http://www.rootsweb.com/~txwood/index.htm
None of these Knight's listed in marriage records of 1879 - 1883, Wood county.

1900; Census Place: Justice Precinct 4, Wood, Texas; Roll: T623 1681; Page: 29B; Enumeration District: 144.
John Knight 1/1848 GA married 17 yrs father listed AL mother GA
Iva wife 1/ 1866 TX mother of 6 living children of 8 father SC mother TX
Samuel 7/1884? age 16
Wm 8/1890
Maude 1/1892
Rhoda 12/1893
Bennie son 3/1896
Emily? dtr 6/1898
Samuel Clark 11/1827 SC father in law

Hillery Knight 5/1845 GA married 2 yrs father AL mother GA
Tenny ? wife 1/1844 TX father AL mother MS

Lee Knight 9/1864 GA married 15 yrs father AL mother GA
Ida 6/1869 AL mother of 6 children father TN mother AL
Mattie 3/1887
Daniel 11/1888
Stella 1/1891
? son 4/1893
Mary 6/1895
Eula 1/1898

Following family listed between John Knight and Hillery Knight. I believe "Delia" to be Loudelia Knight daughter of John D Knight. See 1910 census.

1900; Census Place: Justice Precinct 4, Wood, Texas; Roll: T623 1681; Page: 29B; Enumeration District: 144.
Jas Weems 3/1872 TX married 6 yrs parents GA
Delia wife 1/1877 TX mother of 2 children father GA mother TX
Emma dtr 11/1896
Sadler son 9/1899

You mention that Sarah E Knight died in 1929. Who did she marry or did she marry ?

1900; Census Place: Justice Precinct 4, Wood, Texas; Roll: T623 1681; Page: 30A; Enumeration District: 144.
John Knight Jr born July 1871 GA married 7 yrs father AL mother GA
Lulu or Lula wife 2/1876 TX mother of 3 children
Essie dtr 1/1895
Bessie dtr 4/1897
Crume? Corena? dtr Jun 1899

1900; Census Place: Justice Precinct 3, Camp, Texas; Roll: T623 1618; Page: 14B; Enumeration District: 16.
H D Knight born 10/1867 GA married 12 yrs parents GA
Iris Knight Feb 1879 SC mother of 4 children
Beuna Knight dtr 12/1890
Birty Knight dtr 12/1892
Hattie Knight 3/1894
Mattie Knight 4/1897

1900; Census Place: Justice Precinct 3, Camp, Texas; Roll: T623 1618; Page: 7A; Enumeration District: 16.
G W Knight June 1862 GA married 5 yrs father NC mother GA
Irene or Irena 2/1872 SC no children

1910; Census Place: Justice Precinct 4, Wood, Texas; Roll: T624_1601; Page: 18B; Enumeration District: 130; Image: 290. 1920;Census Place: Winnsboro, Wood, Texas; Roll: T625_1860; Page: 22B; Enumeration District: 150; Image: 842.
John D Knight 1847 GA both parents GA
Ida 1866 TX
Maud 1899 TX
Rodia 1896 ? TX
Ben 1898 TX
Eulie 1900 TX dtr
James/Jim 1902

Maud and James only children in household in 1920. John D and his children not found in Wood county in 1930.

1910; Census Place: Justice Precinct 4, Wood, Texas; Roll: T624_1601; Page: 8A; Enumeration District: 130; Image: 269. - 1920;Census Place: Winnsboro, Wood, Texas; Roll: T625_1860; Page: 25B; Enumeration District: 150; Image: 848.
David Lee Knight 1865 GA parents GA
Francis Ida 1870 TX AL AL
Otha P son 1893
Mary F 1895
Eula 1897
Jesse D son 1901
Lola B 1903
Fay 1905
Edward B 1909
Mattie Hallman 1888 widowed daughter - 1910 household with her children
Gladys Opal Hallman 1907 grand dtr father from AL
Lenard Earl Hallman 1909 grand son
Johnie M Knight dtr 1910

Martha A Swann or Swanson mother in law born 1847 AL in household in 1920. Knight children in household in 1920 are Jesse, Lola, Fay, Edward and Johnie M.

1910; Census Place: Justice Precinct 4, Wood, Texas; Roll: T624_1601; Page: 18B; Enumeration District: 130; Image: 290.
Will Knight 1890 TX father GA mother TX married 2 yrs
Fleta wife 1887 TX TX TX

1910; Census Place: Justice Precinct 4, Wood, Texas; Roll: T624_1601; Page: 14B; Enumeration District: 130; Image: 282.
James A Weems born TX 1872 married 15 yrs father GA mother unknown
Loudelia wife born TX 1877 father GA mother unknown 3 living children of 6
Emma M dtr 1897
Aubrey J son 1905
Cisero son 1908

I did not find the Weems' in 1920 but show back up in 1930. Loudelia listed as Lou D in 1930, son Beryl Cisero born 1909 , Ramon L 1912 and Juanita 1918 only children in 1930 household.

1910; Census Place: Pittsburg, Camp, Texas; Roll: T624_1537; Page: 6B; Enumeration District: 21; Image: 89.
Henry D Knight 42 1868 GA parents GA 2nd marriage 7 yrs saw mill operator owned home no mortgage
Georgia L Knight 33 AR GA GA 2nd marriage mother of 4 living children
Hattie L Knight 17 TX mother TX
Mattie S Knight 13 TX mother TX
Dalia M Knight 2/12 TX mother AR
Lena M Fowler 15 step dtr AR father TN
Eulas A Fowler 13 step son AR
Sallie N Fowler 11 step dtr AR

1910; Census Place: Justice Precinct 3, Camp, Texas; Roll: T624_1537; Page: 2B; Enumeration District: 23; Image: 165.
George W Knight 1863 GA NC GA married 24 yrs
Irene 1871 AL AL KY no children
Iris Knight 1902 TX niece father GA mother AL - was Jesse K her father ?

Living next to George Knight in 1910 is a Frank Knight born appx 1887 TX, married 0 yrs, parents from GA and his wife Mable born AL abt 1891.

1920;Census Place: Justice Precinct 2, Camp, Texas; Roll: T625_1785; Page: 12B; Enumeration District: 26; Image: 164.
George Wight 1863 GA SC SC
Irene wife
Iris Wight niece 1902

1920;Census Place: Fort Worth Ward 13, Tarrant, Texas; Roll: T625_1850; Page: 21B; Enumeration District: 154; Image: 603.
Wm C Knight 1889 TX GA TX
Fleta A 1888
Evelyn A 1911
Helen 1916
James Crow 1894 TX nephew
Benjamin B Knight 1896 brother

?
Helen Reginia Knight & Buster Hunter:
Sharon Anna 10 Sep 1943 Tarrant


1920;Census Place: Fort Worth Ward 7, Tarrant, Texas; Roll: T625_1848; Page: 2B; Enumeration District: 129; Image: 1017. - 1930; Census Place: Fort Worth, Tarrant, Texas; Roll: 2393; Page: 52A; Enumeration District: 28; Image: 677.0.
Samuel J Knight 1885 TX GA TX
Magnolia wife 1885 AL
Vannie Lee dtr 1904 TX
Ida dtr 1908 TX
Agnes dtr 1910 TX
D J son 1915 TX
J Frank son 1917 TX
Curtis son 1923

Agnes, J Frank and Curtis only children in household in 1930.

Infant of S J Knight born 5 Jul 1917 Tarrant

J FRANK KNIGHT
05 Jul 1917 - 30 Oct 1997
last residence 76049 Granbury, Hood, TX
ss issued as long time or retired railroad worker

Ida Magnolia Knight & Pat Murphy Thomas:
Patsy Genelle 1 Mar 1930 Tarrant
Carolyn Laverne 7 Jul 1932 Tarrant

1920;Census Place: Winnsboro, Wood, Texas; Roll: T625_1860; Page: 22A; Enumeration District: 150; Image: 841. - 1930; Census Place: Precinct 4, Delta, Texas; Roll: 2323; Page: 9B; Enumeration District: 10; Image: 355.0.
Curby C Goolsby 1886 TX parents GA
Mattie L Knight Hallman Goolsby 1888 TX
Alton Goolsby 1912
Rowena Goolsby 1913
Grady Goolsby 1915
Grace Goolsby 1915
Minta Lee Goolsby 1917
Opal Hallman 13 step dtr
Earl Hallman 11 step son
Lee Marris/Morris 1900 TX nephew

Opal and Earl Hallman still in Goolsby household in 1930, nephew Lee Morris in household in 1920.

Gladys Opal Hallman & Robert Sidney Pitts:
Mattie Ivan? Yvonne? 27 Feb 1937 Delta
Patricia Ann 28 Aug 1944 Harris
Hazel Lee 10 Feb 1948 Harris

Hazel Lee Pitts & David Lance Justice:
Stacy Lynn 24 Feb 1966 Harris female
David Eric 14 Mar 1968 Harris
Melissa Kay 2 Oct 1979 Harris
Leonard Earl Hallman & Sarah Emmaline Hendley:
Linda Beth 17 Jan 1949 Wood

Linda Beth Hallman & William Edward Dixon:
William Anthony Dixon 17 Mar 1972 Midland

Linda Beth Hallman & Bruce Gregory Davis:
Matthew Alexander Davis Hallman 16 Apr 1988 Hopkins

Rowena Goolsby & Archie D Powell:
Frederick Hughes Powell 15 Jul 1930 Motley

Rowena Goolsby & Jewel Hallie Landers:
Robert Earl 12 Jun 1951 Dallas

Grace Goolsby & Audley Lewis Anderson:
Eileen 30 Apr 1938 Delta
Lewis Lyndol 16 Dec 1943 Delta

Grady D Goolsby & Evelyn Willma Templeton:
Joe Edwin 1 Feb 1942 Delta
Charles Wynn 14 Aug 1946 Delta
Richard Grady 16 Sep 1948 Delta

1930; Census Place: Precinct 4, Wood, Texas; Roll: 2412; Page: 7B; Enumeration District: 13; Image: 850.0.
David L Knight 65
Francis E 59
Jesse D 29 widower
Johnie M 18 daughter
Jessie R Knight age 5 grand dtr

A Johnnie Mae Knight married Carl Bobbie Brooks and had 3 children in Walker Co:
Bobbie Jeane 4 Aug 1931
Dorothy Lee 9 Jan 1933
Ellouise 3 Jun 1934

A Jessie Ruth Knight & Arnold Marshall Keith had Sandra Wynell Keith 14 Jul 1946 Gregg Co.

1930; Census Place: Precinct 4, Wood, Texas; Roll: 2412; Page: 10A; Enumeration District: 13; Image: 855.0
David B Yancey 1886 GA
Stella T Knight Yancey 1891
Maurine H Yancey 1912
Lue M D Yancey 1914
Mary M Yancey 1916
Edward B Knight 1910 bro in law

Mary Margaret Yancey & George William Bolding:
Yancey Lanell 17 Oct 1938 Franklin
Norma Jane 25 Nov 1940 Franklin

1930; Census Place: Precinct 2, Camp, Texas; Roll: 2303; Page: 2A; Enumeration District: 5; Image: 482.0.
Henry D Knight 1868
Georgia L
Dailly ? Deilly? M 1912
Harrold D Patridge 1915 grandson - unable to find Harold in 1920 record to determine if he was child of one of Georgia's daughters or Henry's.

1930; Census Place: Precinct 2, Camp, Texas; Roll: 2303; Page: 9A; Enumeration District: 6; Image: 514.0.
Homer Gross 1900
Iris Knight Gross/Grace/Groce wife 1902
James R son 1921
Dorothy dtr 1925
Robert G son 1927
Claud T son 1929
George W Knight 60 uncle
Irene Knight 55 aunt

?
Buna Knight & Burnice Alvin Kizer:
Carlos Edward Kizer 14 May 1934 Camp

?
Emma/Euna D Knight & William Homer Kizer:
Peggy Ruth 27 Jun 1934 Camp
Joe Milton 11 Jun 1938 Camp
Jimmie Doyle 19 Mar 1944 Camp

Iris Knight & Homer Bailey Grace or Groce:
Claude Tomas Grace 14 Jul 1929 Camp
Henery David Grace 23 Oct 1931 Camp
Johnnie Ruth Groce 15 Jun 1935 Camp
Iris Jane Grace 3 May 1939 Camp

WW I Draft registration cards, 1917 - 1918

Name: Samuel Jones Knight
Address: 619 Arlington, Fort Worth
County: Tarrant
State: Texas
Birth Date: 24 Jul 1884
Race: White
Roll: 1953360
DraftBoard: 3
car inspector for ?
Magnolia next of kin
tall, blue eyes, dark hair

Name: Wm Carroll Knight
Address: 2009 H. .ton?, Fort Worth
County: Tarrant
State: Texas
Birthplace: Winsborough, Texas;United States of America
Birth Date: 20 Aug 1889
Race: Caucasian (White)
Roll: 1953361
DraftBoard: 4
car inspector Ft Worth & Decatur? RY Co
has wife/2 children
tall, slender, grey eyes, lt brown hair

Name: Ben D Knight
Address: Rt 1, Leesburg
County: Wood
State: Texas
Birthplace: Winnsboro, Texas;United States of America
Birth Date: 27 Mar 1896
Race: Caucasian (White)
Roll: 1983875
DraftBoard: 0
farming for father E of Winnsboro
single, tall, slender, blue eyes, brown hair
6/5/1917

Name: David Bailos Yancey
City: Not Stated
County: Wood
State: Texas
Birth Date: 25 Feb 1885
Race: White
Roll: 1983876
DraftBoard: 0

No record found for Otha? P Knight, Daniel Knight or Curby Goolsby.

Name: David Lee Knight
Death Date: 31 Dec 1940
Death County: Wood
Certificate: 58246

Name: Frances Ida Knight
Death Date: 11 Feb 1959
Death County: Wood
Certificate: 18269

Name: Ida Knight
Death Date: 8 Aug 1938
Death County: Wood
Certificate: 39801

No record in Wood county for John D Knight

Name: J. A. Weems
Death Date: 31 Jan 1947
Death County: Wood
Certificate: 80521

No record for a Loudelia Weems

Name: Henry D. Knight
Death Date: 4 Mar 1933
Death County: Camp
Certificate: 11946

Name: Georgia Lee Knight
Death Date: 28 Jan 1935
Death County: Camp
Certificate: 858

Name: Irene Knight
Death Date: 26 Aug 1952
Death County: Camp
Certificate: 42853

No record for G W Knight in Camp county

Name: Mattie Goolsby
Death Date: 12 Nov 1971
Death County: Delta
Gender: Female
Marital Status: Widowed

MATTIE L GOOLSBY 11 Mar 1887 15 Nov 1971 (V) 75432 (Cooper, Delta, TX)

Name: Charles Goolsby
Death Date: 20 Jan 1965
Death County: Delta
Gender: Male
Marital Status: Single

Name: Minta Lee Goolsby
Death Date: 31 Aug 1935
Death County: Delta
Certificate: 37332

GRADY GOOLSBY 21 Mar 1914 11 Oct 1999 (V) 75432 (Cooper, Delta, TX)

Name: Magnolia Knight
Death Date: 5 Sep 1966
Death County: Tarrant
Gender: Female
Marital Status: Widowed

Name: Sam J. Knight Jr.
Death Date: 1 Aug 1923
Death County: Tarrant
Certificate: 25174

Name: Samuel Knight
Death Date: 3 Apr 1965
Death County: Tarrant 76133
Gender: Male
Marital Status: Single
Born: 24 Aug 1884

Knight, Samuel Jones 4-3-1965 M Single Tarrant

Name: Sam Knight
Death Date: 21 Dec 1975
Death County: Tarrant
Gender: Male
Born: 24 Nov 1921

Name: Sam Knight Jr
Death Date: 9 Feb 1996
Death County: Tarrant - 76104
Gender: Male
born: 5 Apr 1915

?
Name: W. C. Knight
Death Date: 30 Jun 1921
Death County: Tarrant
Certificate: 17833

Name: Fleta A Knight
Death Date: 23 Jul 1972
Death County: Tarrant 76112
Gender: Female
Marital Status: Widowed
born: 17 Apr 1887

Knight's who drew Civil War pensions from Wood county, copies can be obtained from the Texas State Library.

Knight, Ellen 04533 Wood Knight, Daniel
Knight, Hillard Washington 29033 Wood - assuming this is Hillery ?
Knight, Ida 51339 Wood Knight, W. Lafayette 42224
Knight, John Dunkan 29034 Wood
Knight, John Dunkan (Mrs) 42437 Wood Knight, John Dunkan 29034

The one for Mrs. John Knight would have data as to when John D Knight died.