I do not find a Lawrence D Jackson who died 15 Aug 1968. I am not related and can not help with an obit.

"I am searching for the obituary of Lawrence D. Jackson that died 8/15/1968 and information on his family."

Floyd M Jackson who died 16 April 1991 was born 29 Nov 1908 died in Lynn county. Both were sons of William Thomas "Tom" Jackson and Cynthia York.

Lawrence Dawson Jackson Sr, married, # 41042
01 Aug 1895 Independence, AR
15 May 1968, Medical Arts Hosp, Lamesa, Dawson, 7 weeks
residence 515 W 7th St, Post, Garza, TX
Tom Jackson father
mother unknown
Mrs. Nora Jackson informant
buried O'Donnell Cemetery, O'Donnell, TX in Lynn county

Lawrence Dawson Jackson born 01 Aug 1895 AR registered WW I draft in Stonewall Co TX

Lawrence D Jackson born AR found in 1910 census in JP 4, Hill County, TX with the above mentioned Floyd M Jackson in household.

William T Jackson 39 1871 AR widowed AR AR
Clarence C Jackson 18 1892 AR son, mother AR
Lawrence D Jackson 14 1896 AR son
Clara E Jackson 12 1898 AR dtr
Emma L Jackson 7 1903 TX dtr
Floyd M Jackson 1 1909 TX son
John R Williams 27 1883 AR married bro in law parents USA
Della York Williams 22 1888 AR married sister in law parents AR

Isaac N Crabtree 65 born MO 1845 married 44 yrs
Amanda Crabtree 61 born MO 1849 8 living children
Job E Crabtree 21 born TX 1889 married 0 yrs
Addie Mae Jackson Crabtree 1894 TX AR AR wife of Job E
Mattie Crabtree 25 born TX 1885 single dtr - married Clarence C Jackson

1900; Census Place: Washington, Independence, Arkansas; Roll: T623 62; Page: 12B
William T Jackson May 1870 AR married 1890 father/mother AR
Sintha [Cynthia York] Jackson March 1874 AR AR AR bore 4 children
Clarance Jackson Oct 1891 AR
Addie Mae Jackson Oct 1893 AR
Lawrence Jackson Aug 1895 AR
Clara Jackson March 1899 AR

Addie Mae Crabtree, widowed, # 21065
11 Oct 1893, says Texas
01 Mar 1976, Henderson Co Mem Hosp, Athens, Henderson, TX, 12 days
residence Rt 4, Pct 3, Athens, Henderson
Tom Jackson father
Cynthia York mother
Mrs. Lillian McGregor, daughter, informant
Meredith Camp Grounds Cemetery, Athens

William E Crabtree 1911 - 16 Mar 1974 Dallas, Dallas, father Jobe Crabtree, mother Addie Jackson

Lloyd Crabtree 1914 - 20 May 1942 Greggton, Gregg, Texas, father J E Crabtree, mother Addie Mae Jackson

1900; Census Place: Washington, Independence, Arkansas; Roll: T623 62; Page: 13B
John York 1857 AR married 1899, father AR mother TN
Malissa York Mar 1880 AR wife no children ?
Mary A York Aug 1899 AR dtr
Andrew York Dec 1871 AR brother
Ider/Idel York Dec 1881 AR sister
Bertie York June 1884 AR sister
Della York July 1885 AR

1920, Justice Precinct 4, Stonewall, Texas
William T Jackson 1870 AR AR AR
Calie F wife 1892 TX USA TX
Ermie L dtr 1903 TX - Emma L
Lloid M son 1909 TX - Lloyd M
Marshel E son 1911 TX
Melvin son 1913 TX
Tracie son 1917 TX
Vivian dtr 1916 TX
Flossie dtr 1918 TX

1920, JP 3, Lynn, Texas
Clarence C Jackson 1891 AR
Mattie A wife 1885 TX TX TX
Delmon C son 1913 TX - ? born 24 Oct 1913 Lynn
Pauline dtr 1915 TX - ? born 09 Aug 1915 Lynn
Vida Faye dtr 1918 TX ? born 06 May 1917 Lynn
Letha J dtr 1919 TX
Lela L dtr 1919 TX

1920 JP 2, Kent, Texas
Lawrence Jackson 1896 AR
Annie 1895 TX
Willam M Jackson 1914 TX
Nola D Jackson 1915 AR
Edgar Jackson 1918 OK

1930, Precinct 3, Lynn, Texas
Joe B Crabtree 1889 TX
Addie M 1894
Elmer W 1911
Loyd E 1913
Toy L 1918
Lillian E 1920 married Gene McGregor
Addie Louise 1922 married Fletcher Gordon Wood
Lena P 1925
Ben T 1926
Ima J 1929
female Crabtree born 17 Oct 1932 Henderson, father Jake E mother Ady Jackson

Laurence D Jackson 1895 AR
Annie Edwards Jackson 1894
Wm R 1914
Nola Dean 1916 married G J Galeneva married Oscar V Veach
Edgar 1917
L D 1920
Dawson 1924
Jack 1925

Effie Jackson born 27 Jan 26 Lynn father L D mother Annie Edwards
Jack Jackson born 11 Sep 27 Lynn father L D mother Annie Edwards

Clarence Jackson 1891 AR
Mattie A 1885
Delmond Clayton 1913 married Hester Jean Coursey/Cawesey
Pauline 1915
[Vida] Faye 1918
Letha 1920
Rayburn Rex 22 Sep 1920 Lynn
Lucille 1923
Ralph 1924
Glenn 1926

Lynn Jackson 05 Jan 1926 Lynn father Clarence Clinton mother Mattie Ada Crabtree

1930, Derens, De Baca, NM
William T Jackson born AR age transcribed as 50 should be 60
Callie Dummas Jackson 1891 TX USA TX married William when she was 18
Melvin 1913 TX
Tracey I 1914 son TX
Vivian 1916 TX married Troy Leach
Flossie 1918 TX
W T Jr born Lynn county 14 Sep 1923 parents not listed
Earl 1926 TX
Lillian 1928 TX
Lavania 1929 TX
Rhea listed as Jackson 1913 grandson TX

W T Jackson and Callie returned to Lynn county; dtr Billie June born 10 Dec 33 Lynn which makes 16 known children fathered by William Thomas Jackson, if I counted correctly. W T nor Callie have death records in Lynn county. Find a W. T. Jackson who died in Dawson county 22 Oct 1933.

Lawrence D Jackson - Nora Pierce; Arthur Kelly 7 Jul 36, Lawrence Jr 15 Jul 34 and Catherine Wanell 10 Nov 45 Lynn

Mattie Ada Jackson, divorced, 20 Dec 1883 Hill Co - 05 Mar 1970 Lamesa, Dawson, buried Draw TX, I N [Isaac Newton] Crabtree father, Amanda Thurman mother, ss death show she resided in Tahoka, Lynn county.

Floyd Martin Jackson - Lois Bell/Belle Morgan;
female Jackson 20 Oct 31 Lynn
Millie Juanell 13 Jun 34 Lynn
Nita Fern 29 Jan 40 Lynn
Floydean 19 Aug 42 Lynn
Martin Wayne 14 Jul 45 Lynn

Billie Jean Jackson Seigler born 10 Dec 1933 Lynn, TX died 29 Nov 1957 in Lubbock, Lubbock, Texas, father W T Jackson, mother Callie Dumas, Stanley B Seigler, informant, buried Tech Memorial Park, died from pneumonia had rheumatic heart disease.