The Story: "Missing in Action--5 Justice Leaguers!" by Gardner Fox, Mike Sekowsky, and Sid Greene. Several different menaces attack the JLA at the same time, so that they are missing in action when they are called to action to fight the Lord of Time(JLA #50).
Roll Call: Superman, Batman, Green Lantern, Martian Manhunter, Atom, Hawkman
Notable Moments: The story is told entirely in flashback by Snapper Carr. It happens concurrently with the events of JLA #50, a fairly unusual touch for the time.
All the JLAers appear in the final panel, ready to head off to Eddie Brent's medal ceremony, from the last page to #50.