My paternal grandfather was born in Ebbw Vale, Wales, in 1873, to parents who were both born in Ireland. His mother's maiden name was Mary Ann Macnamara, but she was a widow when she married my great grandfather (in Ebbw Vale in 1872. I would like to discover more about my grandfather's half-sister Mary Ann. She was probably born in about 1867, where I do not know, Her father's surname was (proba…