James Walsh from nuns island

Hi there I've been searching onthe Tuam message board the last few weeks looking for family and have been successful, thanks so much. I am know looking to find out where abouts my great grandfather might be buried if possible. His name was James walsh born 1879 Tuam Galway but lived in Galway with his wife and children until his death in approx 1918 could be later .He worked as a coachman unsure where in Galway and had an accident and later died. Last known address was nuns island and previous to that was Raleigh Row. Any help would be greatly appreciated. Names of graveyards for Galway city etc.