Yes the birth certificate of the first born registered in Mar 1860 male Dillon Elham 2a 751 is for Henry George Dillon, son of Henry Dillon and Adelaide Ghoff.
I also have the baptism entries for Michael John and Mary Anne both born in Canada:-
"12th of October, 1862, the undersigned priest have baptized, Michael born on the 26th of September.....of the lawful marriage of Henry Dillon, soldier of the 47th, who could not sign and Adelaide Goff of this parish. The sponsors were Michael Bramshaw (?) and Mary Carey. St. Patrick Church, Montreal, Quebec."
"22nd day of January, 1865, M. Anne Dillon legitimate daughter of Henry Dillon and Adelaide Goff. St. Jean Cathedral, Quebec."
Widowed Adelaide was back in Manchester by 1891 and remained there until she died in 1915:-
Class: RG12; Piece: 3172; Folio 80; Page 4; GSU roll: 6098282
It is on the 1891census that Priscilla is recorded as being born in Italy.
Luzzu