Hi again,
I was at the Toronto Reference Library today and I looked in the City Directories. I started with 1973. Your Albert J. Long was listed as the assistant Foreman for the Borough of Scarborough. He lived at 79 Wye Valley Road in Scarborough. In 1974-6, the information is the same. In 1977, he is listed as retired, but at the same address. The next directory I found was for 1978/79, and he is no longer listed. Eleanor is - at the same address. I assume that Albert died between 1977 and 1979.
Eleanor Long is at that address in further directories. The last one with her name in it is 1994. She is still at the Wye Valley address. In 1995, there is no Eleanor Long in the directory. She may have died, or moved in with relatives.
I hope this gives you a better time frame to search for their death notices/cemetery records. I have looked in the Star, but I can't find obits for either of them... it is a bit frustrating!!
Hope this helps,
RK