some (late) info on this one- already figured out by Salty, and also in Alan's summary page.

I underlined some of the clues: The balloons flown included both the the Intrepid and the Constitution, flown at the Battles of Gaines Mill and/or Fair Oaks, part of the more familiarly known First Battle of Cold Harbor by those in union suits. All of this part of the Peninsula Campaign east of Richmond, Va during the War between the States.

description of the picture

or it could be at Gaines Mill

Balloon Corps

And don't forget Thadeus Lowe!

What In The World Happened Here? CXXXVII (137):

AlanK took more than 3 days to solve this. That's some kind of a record.

There was an anniversary involved, a few months back.

Who are those guys?

Wouldn't want to hurry things too much here, but giving any additional clues would end this puzzle.

That's enough for me. I should have realized that the guys referred to in the original post were not the ones chasing Redford and Newman.

Steve and Wagga have the place, but the specific answer(s) to the question may be more elusive.

The obscurely-named Clinton Rock is in the area.

I take it that just naming the four dead white males is not what you're after.

I take it that just naming the four dead white males is not what you're after.

Steve and Wagga have the place, but the specific answer(s) to the question may be more elusive. You may have to drill down more than a little bit.