Vicky,
I don't know if this is the same person, but I did find a John B. Keller listed in the 1870 Census in Labette Co, KS - Hackberry Twnshp pg. 8. It shows as follows:
Keller, John B., 54, M, W, Farmer, born OH
....Lucinda, 47 F, W, Keeping Hse, born NC
....James W(M), 21/29, M, W, Farm Laborer, born IN
....Aaron J, 21, M, W, Farm Laborer, born IN
....William P, 15, M, W, Farm Laborer, born IN
....Edwin L, 8, M, W, born IL
....Effie G(J), 6, F, W, born IL
I didn't get through all of the census records, but will keep checking.
Melissa Boston
mboston@houston.rr.com