hi Mobo, wonder if you can offer me some advice

I'm trying to track down my g-g-grandmother, Margaret Lyden, who was born about 1833 in Clifden, Co Galway. Her father was a coastguard (William Lyden) and her brother, Bartholomew, was also a coastguard. Bartholomew was born on 22 May 1822 in 'Orney [sic], Galway' (this info is from his naval records at Kew).
Considering that this family would have moved around quite a bit in the coastguard service, could you suggest the best way of tracing them (I'm hoping to visit Ireland this autumn on a holiday/ancestor hunt

)
Clara
