Not related, but found some info on John & Margaret B. (Myers) Cunningham:

1860 Elmore Twp., Daviess Co., Indiana
Enumeration Date: August 3, 1860
Page: 935
Line: 24
Dwelling/Family: 1484/1159

Cunningham, Goodman - age 42, farmer, born in IN
" Mary - age 40, born in IN
" William J. - age 21, farmer, born in IN
" Mary Jane - age 19, born in IN
" Rboert W. - age 17, born in IN
" Julian - age 15, born in IN (female)
" Alonzo - age 13, born in IN
" Martha E. - age 11, born in IN
" Acha - age 9, born in IN (male)
" Elizabeth - age 7, born in IN
" John - age 4, born in IN
" Lewis S. - age 10mo., born in IN

1870 Madison Twp., Daviess Co., Indiana
Enumeration Date: August 12, 1870
Page: 228
Line: 10
Dwelling/Family: 221/217

Cunningham, Mary - age 49, keeping house, born in IN
" Mariha E. - age 21, born in IN
" Archibald - age 19, born in IN. (Acha)
" Elizabeth - age 17, born in IN
" John - age 14, born in IN
" Lewis - age 10, born in IN
" Nancy - age 8, born in IN
**************************************
Indiana Marriage Collection, 1800-1941

John M. Cunningham
m: December 27, 1877 - Daviess Co., IN (Bk 4, pg. 393)
Margaret B. Myers
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1880 Bogard Twp., Daviess Co., Indiana
Enumeration District: 147
Sheet Number: 629A
Enumeration Date: June 26, 1880
Line: 41
Dwelling/Family: 47/48

Cunningham, John - age 23, farmer, born in IN. Parents born in IN
" Isabella - wife, age 18, keeping house, born in IN. Parents born in IN
" Della J. - daughter, age ?, born in IN

1900 Tonti Twp., Marion Co., Illinois
Enumeration District: 33
Sheet Number: 302A
Enumeration Date: June 22, 1900
Line: 39
Dwelling/Family: 164/164

Cunningham, John - born November 1856, age 43, married 22 yrs., born in IN. Parents born in IN. Occupation farmer
" Margaret B. - wife, born October 1861, age 39, married 22 yrs., 10 children/ 8 children living, born in IN. Parents born in IN
" Adda - daughter, born April 1886, age 13, born in IN
" Grace - daughter, born March 1889, age 11, born in IN
" Mack - son, born October 1892, age 7, born in IN
" Etna - daughter, born October 1894, age 5, born in IL
" Ray - son, born March 1897, age 3, born in IL
" Baby - daughter, born August 1899, age 10mo., born in IL

1910 Tonti Twp., Marion Co., Illinois
Enumeration District: 156
Sheet Number: 281A
Enumeration Date: April 28, 1910
Line: 5
Dwelling/Family: 111/115

Cunningham, John M. - age 63, married(#1) 30 yrs., born in IN. Father born in the US. Mother born in IN. Occupation farmer.
" Bell - wife, age 48, married(#1) 30 yrs., 11 children/8 children living, born in IN. Parents born in SC
" Mack - son, age 18, born in IN
" Etna - daughter, age 15, born in IL
" Ray - son, age 13, born in IL
" Florence - daughter, age 10, born in IL ("Baby" in 1900)
Gatz, Katherine - age 51, widowed, born in OH. Parents born in GER

1920 Salem Twp., Marion Co., Illinois
Enumeration District: 191
Sheet Number: 27A
Enumeration Date: January 10-12, 1920
Line: 10
Dwelling/Family: 48/48

Cunningham, John M. - age 63, married, born in IN. Parents born in IN. Occupation veterinary surgeon/general vet surg
" Bell D. - wife, age 57, married, born in IN. Parents born in IN
Bidler, Glen - son-in-law, age 21, married, born in IL. Parents born in IL. Occupation farmer
" Florence D. - daughter, age 20, married, born in IL
Cunningham, Ray V. - son, age 22, born in IL. Occupation machininst/engine shop.
*********************************
Illinois Statewide Marriage Index, 1763-1900

Della Cunningham
m: April 20, 1898 - Marion Co., IL (Vol. E, pg. 62)
Emmit B. Neal

Lillie Cunningham
m: February 21, 1900 - Marion Co., IL (Vol. E., pg. 74)
Ira Chandler
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Postin on Ancestry.com by Brenda Tanner. Last updated April 17, 2007

John McCovey Cunningham
b: Nov 21, 1856 - Bogard, Daviess Co., IN
d: Dec 28, 1922 - Salem, Marion Co., IL
F: Goodman Cunningham - born IN
M: Mary Ann Adams - born IN

m: Dec 27, 1877 - Daviess Co., IN
Margaret Bell (Isabell) Dora Myers
b: October 5, 1861 - Indiana
d: April 28, 1929 - Harvey, Cook Co., IL
F: John Myers - born IN
M: Mrs. Myers - born SC

Children: Della J., Lily Dean/Lilie Dee, Calvin T. (1882-1883), Bessie May (1884-1889), Addie Myrtle, Grace Emily, Mack, Etna, Ray/Roy and the youngest Florence found in 1900, 1910 & 1920 census

I hope this info helps................Karen