2 Sep 1977: Name listed as JOHN D HOLMES
In case you didn't already know, this doesn't mean he was alive in 1977. It's just something that the Social Security Administration did to check its systems. My father has something similar on his entry that was from 7 years after he died.
There's a bit of a lapse of online Michigan death records. They have through 1952 for the state and 1953 for Wayne Co., and then it starts up again in 1971. Good chance that John & his wife died in that time frame.