Justice League of America (vol. 1) #92 (September, 1971). Cover art by Neal Adams.
When DC decided to make Solomon Grundy their version of the Hulk.
If my faulty memory serves, this the only JLA/JSA crossover where the teams consisted the Golden Age and Silver counterparts of each hero.
Alyssa Milano
I never tire of this "class photo" of the Silver Age-version of the Justice Society of America by Murphy Anderson.
This was when the JSA was still respected by DC Comics. Things went downhill for the group after Crisis On Infinite Earths, when some members (Superman, Batman, Wonder Woman, Robin) were erased from existence. DC then decided to remove most of the remaining members completely from the DC Universe with The Last Days of the Justice Society (1986).
The team was rescued from Limbo in Armageddon: Inferno (1991), but fans didn't get to celebrate long. During Zero Hour (1994) many of its members were killed off or aged to the point of incapacitation.
Of the members pictured above only Flash (Jay Garrick), Green Lantern (Alan Scott) and Wildcat are still active. Red Tornado 2 (the android, John Smith) has been retconned many, many times, but I believe in current continuity he/it was never a member of the JSA, but active with the Justice League.
Jessica Simpson