USA/Central"USA/Central" is not in the list (IRELAND(Munster), IRELAND(Connaught), IRELAND(Leinster), IRELAND(Ulster), SCOTLAND(Argyll and Bute), SCOTLAND(Perth and Kinross), SCOTLAND(Dumfries and Galloway), SCOTLAND(South Ayrshire), SCOTLAND(North East), SCOTLAND(Highland), ...) of allowed values for the "Has historical geographical allegiances" property.
"'A', 'E' and 'D' Quadrille"' is the first change (part) of the Blue Bird Quadrille, published in 1899 by E.T. Root (Chicago), and was named (quite obviously) after the key change in each of its three parts.
It was collected by R.P. Christeson from the playing of Nebraska fiddler "Uncle" Bob Walters in Nov., 1949. Christeson notes that quadrille parts had largely been divorced from the original sets, so that in popular usage in the Midwest a quadrille refers to a single piece in 6/8 tempo.