I had the same thought about Capitol. There’s a big thread on here with loads of vintage dramatics on them. Yes, the timpani I found by accident after looking for years on anything that had Timp or Solo Drum. I was flicking through looking for something else and there it was 😍
I have a stash of Media Music/ Capitol but no catalogue. I did check a Major Valentino catalogue for a Johnny or Banjo but didn’t see anything likely. Many catalogue’s have a ‘Well Known Tunes’ section which can prove helpful.
I have a friend of mine (he's the one that put together the Waxworks Night/Dawn compilations) who's really into Capitol's library and has been actively archiving them. He had sent me a Capitol catalogue and I thought I should look in there. I DID find a cue for "Johnny Comes Marching Home" but it isn't the same cue, since it was big and orchestral. So I'm back to square one!
I do have a good relationship with Mike Gornick. Ill ask him about those cues and he may have some ideas, since he was basically the guy that found the DeWolfe cues that George ultimately used in Dawn. He's the one that found the Gonk! He had insinuated that those timpani hits were from Capitol and caught some heat about it. But since it's been found to be DeWolfe, I wonder if it's actually the Crazies he's thinking of. If you get any more info, feel free to send me a message.