In the process of searching my tree I have come across this for Oliver H Draper via this site:
http://www.rootsweb.ancestry.com/~injohnso/biosketch/bios.ht...

It has a bio for Oliver and his father Benjamin.
Also from a source who is associated with the Moultrie Historical society sent me this information:

".....Oliver H. Draper (b: 2/6/1846 in Decatur Co., IN - d: 1/3/1914 in Macon, IL). He enlisted in the Civil War (Feb., 1864) & was assigned to Company D 17th Regiment Indiana Mounted Infantry. He was with Sherman until after the fall of Atlanta. He was honorably discharged in Macon, GA on 8/8/1865.

Oliver married Miss Martha Banta on 12/17/1871. He is buried in Macon Cemetery.
(Pre-1920 Moultrie Co., IL obituaries)

They are buried in the South Macon Township cemetery in Macon County Illinois, Find a Grave ## 46479605 &46479617
There appear to be two daughters in the same plot Lily M and Edna.
Hope this helps