Likely William, aged about one year.B. 1814, son of John Brown Coleman and Elizabeth (Coffin) Coleman.
Or else his next older sibling Edmund Gardner Coleman, aged about three.B. 1812.
(William later became the captain of the Dartmouth Ferry--as mentioned in N26n3 . He m. Ann Green and d. 23 Dec. 1886. Edmund was m. 13 Nov. 1843 to Elizabeth Ann Walker, dau. of William Walker; he d. in 1858.)