I found a 1901 census record for an Elizabeth McGlynn who was a widow with three children. Is this your family? I did not find her in the 1911 census. I also located a possible civil death index record in early 1901 which means he died around when the census was taken. I also found a 1924 civil death index record for an Elizabeth McGlynn. Not sure if this is for your Elizabeth. See records below.
|Registered Quarter/Year||Jan - Mar 1878|
|Elizabeth Ferry married one of these people
William M'Glynn, William Glynn, Edward Sweeny, Jiles M'Fadden, John Sweeny, James Boyle
|Age at death||72|
|Registered quarter/year||Jul - Sep 1924|