Thank you Rex and Ken !
No, I am not a descendant but I am a Japanese doing a research about him. He was a bandmaster of 1/10th and taught the Japanese brass music in Japan. Ken, thank you for interesting suggestion. I will look for Frederick Fenton. How old was he when John Fenton joined the 25th ? Frederick might have been John Fenton's kin. Or, since John Fenton, the father died in the West Indies in 1833, the mother married to a man in the 25th. That might be Frederick. But I am pretty sure the bandmaster was John Fenton, who joined the 25th in 1842 when he was a boy.
His birth is most confusing. Especially GRO record (next time i will send the attachment), which says he was born in 12 March 1829 and on the top of the certificate it says Depot 25th Regiment of Foot and under Place and Date of the Child's Baptism it says Kinsale 12 April 1829.
Let me repeat my questions again. First question; was the Depot really in Kinsale ? Rex, thanks for the regimental history. As you say according to WO12 depot of 25th was in Aberdeen not in Ireland. Even if the depot was in Kinsale why was it there? To recruit, maybe. But why not Aberdeen? If the depot was in Kinsale long enough to register a birth and baptism there should be a record in muster roll about being in Kinsale. It was not a day trip ! But I cannot find it, at least in WO12.
Second question is why a birth of a child of 65th foot recorded in Depot 25th ? In the muster roll father seems to be always with the 65th, never was seconded to 25th. May be the mother had some connection with the 25th ? Her maiden name seems to be Towers. Judith Towers. May be a brother or father was in 25th in 1829?
Third question. On the Fenton's grave stone in the US it says 12 March 1831. I forgot to tell you that I found original baptismal record of St Multose Church in Kinsale which says the baptism was in April 1831. So I started to think that the first baby died. But I have not found any burial record. Also. it is higly unlikely that two John Fentons were born on the same 12 March. Or he was born in 1829 and he was baptized twice ?
I also found in 1831 army list Skeffington Bristow. But it was Adjutant Lieutenant S Bristow who signed the GRO regimental birth register of 1829. There was Lt. Peter Henry Bristow in the 25th in 1829. So was S had to be P or can ensign Skeffington Bristow be a adjutant ?