I have found her in the 1962 Voters Lists at the same address, as Mrs. Amy Whitley, but Robert is not with her. She is living with Mr. and Mrs. William G. and Stella Gorman. She is still with William in 1968 but Stella is not listed (I presume she passed away in this time). In 1972 she is living at 58 Winthorpe Road, again, not with Robert but listed as Mrs. Amy Whitley.
Going back farther, in 1949 she is at 46 Malvern with many of the Gorman family - this time she is listed as a widow.
Now that I am looking at her marriage record, I see that her address at the time of her marriage was 46 Malvern, so clearly her parents’ residence.
Does anyone have access to the Toronto newspapers that could maybe search for an obituary for Robert in some way? Even to rule in or out the Robert who died in 1971.