You might be able to find a copy of one of the earliest examples of genuinely field collected material published in America: William Wells Newell's Games and Songs of American Children, originally published in 1883. Dover did a reprint in 1963. Take a look at BookFinder (click on that). They've even got 1992 and 1998 reprints from someplace in Maryland that I didn't know about! And one copy of the original edition for $45!! Damn! My credit card's maxed out, so you get a crack at it!

Sandy