Dan - just seen your request for info re above.
In my research of O'Brian's in India I found a birth record for George O'Brian b 17/8/1872 in Deesa, , Maharashtra, India with father of John O'Brian and mother of Bridget (maiden name at present unknown). Don't know if this is the mother you mentioned that remarried an O'Brian
LDS refernce is C002129 1872 Source Call 0523848 V.46 - see http://www.familysearch.org/Eng/Search/frameset_search.asp?P...
Hope this helps.