I have been researching some collateral lines of mine from Madison County,Iowa. This may be of interest to you.
Lorenzo Cunningham married Sarah Foglesong 10-24-1866
Her father was Jacob Foglesong she was 16 in 1864 so was born in about 1848 in Iowa. Her father was born in Va and her mother in Ky. Washington, Clarke, Iowa was were the census was taken.
YOu will want to note the child who married a brown.
She had a sister MAry C. Cunningham who's info is below
Henry Groseclose married Mary C. Cunningham 5-04-1856 in Madison County,Iowa Henry was born in 1832 and Mary in 1836
They had at least two girls Rebecca M. Groseclose b. 1865 Iowa married Charles W. Sheppard July 25, 1883 Warren County,Iowa EvaGrosecloseb. 1858 married August Brown on March 30,1884Warren County,Iowa. He was born in Prussia.