I am also trying to figure out the Bacons of Posey County, IN.I descend from Isaac Bacon and Jane Coonrod.I still do not know their parents.Thought Moses might be a brother.
Found your letter dated 2005 on GenForum, so by now you might have this information.
1880 Census - I found Abijah Bacon 27 and wife Elizabeth 16 in Ellis, Pulaski County, AR.Just married, no children.
1894 - Son, Roy Abijah Bacon, was born in Livingston, Polk County, Texas, as stated on his World War I and II Registration Cards.
1900 Census found them in Gonzales, Gonzales County, Texas.
1910 Census found them in Cooke County, Texas.
1920 Census - On son, Robert Charles Bacon's, World War I Reg. Card he states his next of kin is Bettie Finch in Roby, Fisher County, Texas.Only Bettie Finch in Fisher County, TX, was married to William F. Finch, his son by previous wife, and family were living with them.1930 the Finch family were still there but no Bettie.
1930 Census California, Alameda, Alameda County - Samuel W. Bones, 83, married first time at age 35, PA PA PA, wife was Bettie A., 66, married first time at age 16, AL AR AR.Samuel had a different wife in 1920.The "married at 16" matches with the 1880 Census.
Son, Roy Abijah Bacon's, World War II Registration Card gives next of kin as Mrs. S. W. Bones, 2131 Buna Vista St., Alameda, CA.This was in 1941, so she was still alive in 1941.
Found Moses' sons, Benjamin H. Bacon 14 and Charles Bacon 6, living with the Thomas Henderson family, his wife was Amy.
Found Benjamin H. Bacon 33 and brother Andrew J. Bacon 23 in Pulaski County, AR, in 1870.
Hope this helps, good hunting.Remember me if you every figure out who the parents of these Bacons from Black, Posey County, IN are.
This might help - In the Census records for Posey County, the Census taker made a strange looking "In" for Indiana.It looks like and "Ia", so naturally we would think Iowa.This can sure through you off on the Birth States.Ancestry.com has all of their's transcribed as "Iowa".You have to remember there was no standard for abbreviating the states, they just made it up as they went.