John Dillon

Ballinasloe RC parish records start in 1820. They are on-line on the rootsireland site (subscription) or if you can wait till July, they are going on-line free on the National Library site.

I'm afraid this is the only record for John with father Robert 1840 + - 10 years Galway from rootsireland.ie/:

Name: John Fred Dillon Date of Birth:
Date of Baptism: 12-Jan-1842
Address: Not Recorded Parish/District: TUAM
Gender: Male County Co. Galway
Denomination: Roman Catholic
Father: Robert Dillon Mother: Margaret Cullinan
Occupation:
Sponsor 1 /
Informant 1: John Brennan Sponsor 2 /
Informant 2: Margaret Grimes

I tried all other counties also but no luck.

Col