I am the great granddaughter of Frank O'Brien and Bridget Droney.....please see my later post looking to get any info on either of them. I'm sure you know by now Frank O'Brien is also on the 1911 census, but died in 1913. My grandmother Anne (b.1884)was Mary's sister. I have been in contact with cousins in Australia and New Zealand.
My email is firstname.lastname@example.org
. I have the same picture of gt. grandfather Frank as is posted on Ancestry as well as pictures of their house and Mary's brother Frank (b.1888).