Looking for source evidence to confirm the parents of John Mulheran Abt 1854 (Drum?, Roscommon) to May 1941 (Rooskagh, Roscommon). He married Mary Cummings 17 Feb 1890 (Kiltoom, Roscommon). Wondering if I should purchase a copy of his death certificate - not sure if 1941 Irish death certificated list parents names?