I was sure I had already replied to this, but I will reply anyway. After reading your post, I launched into a search of my own for these people. I found them in the 1870 census of Keokuk county, in Van Buren township. They are located on page
17, line 11.
Hensley, F W 29 w m Virginia
Emma 27 w f Ohio
Maggie 7 w f Iowa
The family moved to Butler co., Nebraska in 1877
Other than Maggie I can find no other info on any of the
others. Maggie and William Jard Edward Adkisson are buried in Farnam cemetery,Frontier co., Nebraska.
Emma was actually Emily Ann Coghlan b. 1844 in Warren co.,Ohio.
hope this helps!