Wow. With Horton/Northrup/Stanley/Kaline/Gates Brown in Detroit, Comer was never really going to get out of Toledo without expansion. Sort of the same issue with Don Pepper (Dottie's father) and Norm Cash.
According to his SABR bio, Comer went 1-for-1 in the 1968 World Series as a pinch hitter, but his claim to fame was warming up Mickey Lolich between innings.
Put up good numbers for the Pilots in 1969 but started 0-for-15 in 1970 for the Brewers, was traded to the Senators, and didn't get another 200 plate appearances in the majors.
I believe there were only seven or eight players able to make it back to Detroit for the 1968 reunion photo this summer. Not surprising most of them are in declining health, particularly McLain and Lolich.