Jane Deagle, age 66, born PEI in 1881 census in household of Jeremiah Deagle, also with Robert, age 37.  She was identified as the mother of Jeremiah on his death record. 
↑ "Canada Census, 1881," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MVNH-H5R : 2 March 2021), Jane Deagle in household of Jermiah Deagle, Lot 44, Kings, Prince Edward Island, Canada; from "1881 Canadian Census." Database with images. Ancestry. (www.ancestry.com : 2008); citing Jermiah Deagle, citing Library and Archives Canada, Ottawa, Ontario.