Thanks for replying, 1911 census shows a Mary Ann Graham Rose Graham (older sister) and Patrick Graham brother, Patrick was my grandfather and was supposed to have died in the late 1920s together with his wife Kathleen Delaney in a car accident but I cannot find any trace of this happening,but now you have given the name Oscar Henderson I may find out more information.
Mary Graham (Henderson) had four sons, Sean, Patrick Martin and Liam. She had two daughters Lily (America) And Anne (Canada). Sean ran the Blackstaff Bingo in the old mill of that name but now his son runs it. Sean married Ethna Hyland but the marriage didn't survive. He remarried. Patrick ran a taxi firm on the Falls. Hope that's of some help. DESMOND