Interesting line, as I have a John Baker married to sisters Sarah & Phoebe Apsey, West Coker, Somerset, when various sources have claimed he was serving in India. This John descended from Matthew Baker, bp 18.I.1737 Halstock, Dorset, F: Henry, Mother: Anne. John was baptised in 1768 and I don't know what he did between 1768 and 1795 when he married Sarah. However, he and his brothers sprinkled offspring all over Somerset, and his daughter Amelia's son, Alfred served as farrier with the 5th Royal Irish Lancers, so I hope this can steer your around the brick wall. Aloha!