The information I found on the Internet about Sam McAllister's mother was as follows.
Does anyone have any ideas about where I could find more information? Any help would be most appreciated. Thanks.http://www.wicklow.ie/heritagegenealogy/1798/rebels.html#sam
"Mrs McAllister, Sam's mother, had been living in Dolphin's Barn, Dublin and came to the Glen of Imaal to the grave of her only son. She stayed some time with the Dwyer's, visiting the grave daily. It was thought she then returned to Dublin and died sometime later in a Widow's Alms House in John's Lane."