A Fit For Abiathar Smith Robinson b: Dec 1829 Vermont

I just ran across a possible family that my ggrandfather, Abiathar Smith Robinson, could have come from. Cyrus Robinson and his wife, Thankful, may be his parents. According to the 1840 census of Sharon, Windsor, Vermont, there was a boy age 10-15 years of age that was not on anyone's list for these parents. He was an unknown. Therefore, he either died in infancy, or, he could be my ancestor. His age just fits, and this is a family that I have high hopes for. I already know the two genealogists for this family, Kay and Susan Robinson. I already know of other Robinson lines we do not come from through dna testing. This one is not known at this time.

Descendants of Cyrus B. Robinson
1 Cyrus B. Robinson b: Bet. 1808 - 1809 in prob. Royalton, Vermont d: Bet. 1860 - 1870 in prob. Sharon, Windsor, VT
. +Thankful Unknown b: Abt. 1812 in Vermont d: Aft. 1850 in prob. Strafford, Orange, Vermont
... 2 Boy Robinson b: Abt. 1829 in prob. Sharon, Windsor, VT
... 2 [1] Edna Robinson b: Abt. 1833 in Vermont
... 2 [2] Mary A. Robinson b: Abt. 1835 in Vermont
*2nd Wife of Cyrus B. Robinson:
. +Martha Unknown b: Abt. 1810 in New Hampshire d: Aft. August 1870 in prob. Sharon, Windsor, VT
... 2 [1] Edna Robinson b: Abt. 1833 in Vermont
... 2 [2] Mary A. Robinson b: Abt. 1835 in Vermont