Hi Spuncy,
I think we may be related!
My great granny -Esther Coyne b.1885 (parents Esther Keegan/Coyne & Peter Coyne) married Michael Gilmartin in Sligo in 1909. They moved to Sligo sometime between 1901 (when they were in Athlone) and 1909. I take it they moved with work on the railways. Peter Coyne died in Killeshandra, Co. Cavan in 1923 and Esther Coyne (senior) died in Dublin in 1948. All this seems to match with your excellent detective work?
