Jacob son of Jacob Commins and Elisabeth his wife was born Jan 21st 1746/7. [Note: this is not the original record, but a copy.]
Note: the mother Elizabeth d. 1749 and the father Jacob is said to have died 1752, so if the date is correct, this could not be a son of Jacob and Elizabeth. The son Jacob d. 1745, so there is no Jacob who could be the father. To be a grandchild, then the town clerk would have had to completely confuse the name of the father. But there are no other Cummings family having children in Oxford at that time, nor any sign of a Cummings married to a wife Elizabeth. So it seems the most likely explanation is that the date should be 1746/47. Then, the birth would fit nicely between Lemuel in early 1745 and Elizabeth in early 1749, and would have been the first opportunity that the parents had to reuse the name of the deceased son, a very typical practice of the times. In which case, he is very likely the Jacob Comens who m. 1769 Phebe Converse.