Hi, I only have a little information from Mormon Co. Sligo microfiched records on your surnames here at home, but more and similar information is available at the LDS (Mormon) Family History Centers on each county in Ireland. The FHCs are free and open to the general public, have millions of entries of birth, marriages and deaths worldwide.
1. Brigida Mullany born 06 Oct 1879 to Michael Mullany and Maria Oates, Co. Sligo, Geevah Roman Catholic.
2. Bridget Monaghan born 22 Nov 1837 to Edward Monaghan and Eliza Moffiitt, (others named in source), Co. Sligo, Skreen. See computer record.
3. Edward Monaghan born abt. 1807 (spouse, Eliza Moffitt), ?parents, Co. Sligo, of Skreen, (others named in source, see Mormon FHC computerized records.
FYI, there is information on the Oates surname at the Co. Leitrim website as well.