...as well as being a member of the All-Star Squadron (though he only made it to their biggest meetings in All-Star Squadron #31 and #59-60, and post-Crisis in Young All-Stars #1, Annual #1 and #27), as well as being a ghost and visiting Starman (Jack Knight) in Starman #37 (December, 1997)...
...and a World War II tale in National Comics #1 (May, 1999 by Mark Waid and Aaron Lopresti) with the Flash! This tale, along with the other original JSA members' tales (and JSA #1-25 from the 1999 series, and the 2003 JSA: All-Stars #1-8 and more) are all in the JSA Omnibus #1 of 2014!
End of An Era
...but the JSA wasn't quite done with the Golden Age yet!
detailed here) until the Crisis on Infinite Earths put an end to Earth-2 for a time.