All the Census data on JOB. There is exactly one Betelle listed in the USA. He has no memory of James. “Harry” is most likely James, as the birth year matches.
1880 census – Wilmington, New Castle Co, DE,
Film #1254119
NA Film Number – T9-0119
p. 318 D
Occupation
Name /Relationship /Marital Status /Gender /Race /Age /Birthplace /occupation /Fathers Birthplace
John W. BETELLE Self M Male W 33 DE Clerk In Freight Office DE DE
Annie BETELLE Wife M Fem W 29 DE Keeping House DE PA
Oscar BETELLE Son S Male W 8 DE At School DE DE
Harry BETELLE Son S Male W 1 DE DE DE
Emma BETELLE Sister S Fem W 19 DE DE DE