Bill,
I found a bit more about Capt Richd Halpin:
At Dinapore on the 21st inst. by drowning from the accidental upsetting of a boat,
Capt. Halpen of Her Majesty’s 49th Regt of foot, deeply regretted by his brother officers
to whom he had justly endeared himself by his high and sterling qualities as an accomplished gentleman, an officer and a friend. Parbury’s Oriental Herald 1839
Halpin - Captain Richard - 49th Foot - died 21st March 1839.
Grave at Resurgam - "Sacred to the memory of Captain Richard Halpin, H.M. 49th Regt. who departed this life March 21st 1839, aged 38 years. This tomb is erected by his brother officers as a token of their high esteem." glosters.tripod.com/offzdiedh
So we have his age, born abt 1801. By the way, At Dinapore was buried Gen. Sir William Toone, of Dublin
in Aug. 1822. His sister was Mrs Eliz. Swettenham, who (re)mar. John Halpin (?bookseller) in 1802.
Regards,
Ken