Pat:
I looked at all 14 Mary Deady death records from 1864-1901 in Co. Kerry and did not see a record with Edmond Deady as the informant. Most of the records were in the Dingle area and four of them were in the workhouse hospital which complicates the search because the head of the workhouse was shown as the informant.
Do you have any information on when Mary was born, when she married Edmond Deady, etc?
Roger McDonnell