I noticed that your initial inquiry called her Margaret "Mary" Falvey. Was Mary her nickname? Was it a common nickname in Irelend? Is Mary a common nickname for Margaret? The reason I ask is that one of my ancestors, Margaret Falvey, who was born about 1804 married James Cunningham in Fredericton, N.B. Canada in 1831, and her marriage record called her Mary. That has confused everyone ever since.