Another composer on the series was Steve Bramson, who later went onto being the regular composer on J.A.G.
Albeit they're short in length, there are quite a few samples of his Young Indy scores on his website -
http://www.stevebramson.com/ found in the music section, under ADVENTURE (2 cuts) and ROMANCE (2 cuts).
Very under appreciated as a composer, Bramson once related to me how much he had enjoyed working on Young Indy and that he was very much let down , and surprised, that his scores weren't released along with McNeely's and Rosenthal's efforts.
It would be great to see this over site corrected with a COMPLETE SCORES release of all the music done for the series. (Heck, why ask for just a little bit of it?) After all, 2008 looks like it'll be an ideal year, and opportunity, to release/re-release all things related to Indian Jones.
Best,
~ Scorehead