Family database as compiled by Julia Coash.

Family of Tim and Mary O'Brien from County Cork, IRL to Massachusetts, USA (1845); compiled by Michael O'Brien.

Family database and pedigree report as compiled by Austin C O'Brien from Titusville, FL USA.

Ancestral heritage and family photographs of Anthony Lorne O'Brien from St John's, Newfoundland, CAN.

Family database as compiled by Denise O'Brien from Chicopee, MA USA.

Family database as compiled by Debbie Derrick of Australia.