I don’t know if I’m confusing matters here but my grandfather , Peter McDonnell , is the one on the 1911 census form for 11.6 Fitzwilliam Lane and who married Mary Ellen Brennan who is on the 1911 census form living at 2 Fitzwilliam Lane. My mother Christina , their daughter ( born 26/12/28 ) lived in Fitzwilliam Lane but not sure if this was at 2 or 11.6. She moved to Clonard Rd , Dublin with her parents at the end of the thirties.Peter’s brother , Andrew , is as far as I know , the civilian shot near Clanwilliam House during the Rising.