I know I am responding to an old post, but hope it gets to you.
I have been looking at these Momans a good bit for the last several days. Henry Reese's father was (as indicated in the other response to your message) the son of Landrum Moman. Landrum's parents were Bird Moorman (yes, that's the spelling on the marriage record) and Rebecca Huckaby. Bird and Rebecca married September 15, 1839 in Pike County, Georgia. Find them on them on the 1840 Pike County, GA census and the 1850 Coweta County, GA census. Then find Becky on the 1860 Spalding County, GA census - with a son Leander age 9. This boy is your Landrum. Then find in the King David Huckaby household on the 1870 Pike County, GA census, Sandy Momon, age 18 -- the census taker's L and S letters are similar and probably he meant to write Landy or some derivative of Landrum. Landrum M. Moman married Mary Adaline Porter October 7, 1875 in Pike County, GA.
My interest in this line is the Huckabys. Rebecca and King David Huckaby were children of David Huckaby and Elizabeth Furlow.
I have some more info on these Huckabys if you like....