Gardenstatesmen only competed in the RCA 70,71,72.73 can't remember if 74 - they remained as a parade corps until around 1980. They are featured on the "1970 Evening With The Corps" from thre Felt Forum in NYC. We had 55 Horns on stage and competed with close to 48 all of 1970. I was one of the brass instructors and played some solo's. My Dad played bass drum and was Bus Mgr. later on.
The Corps was a merger of the Carver Gay Blades and the Dover Avengers Parade Corps. Pretty unique stuff for 1970. Newark was in the middle of some really bad riots and here we were people from both communities working together for something we all loved. great folks, lifelong frienships etc.
Other Senior Corps gone:
Morristown Colonials (Great "Battle Hymn")
Bridgeport Troopers (Did the "Bunny Hop")
Doremus
Sudbury Knights (RCA)
Cumberland Freestatesmen (RCA)
The Vigilantes (RCA)
There is a web site I found last year that lists all the placements of all the American Legions Nationals. Some realy cool names "Harvey Seeds", Custers Brigade" etc. did not save it but I am sure you can find it.
trox