'TRACY, ... Samuel, Jr., m. Ame PARTRIDGE, b. of Preston, May 15, 1755'
While it would appear that Samuel, Jr, might refer to Samuel (b. Oct 1734), the son of Samuel and Esther, he died in Nov. 1756 (according to the VRs) and Samuel and Ame (Partridge) Tracy were still having children after that (e.g., Samuel Partridge Tracy, born Mar 1769).