Basic to African-American religious song:
J. B. T. Marsh, 1880's, "The Story of the Jubilee Singers; with Their Songs." Some 128 scores and texts in 1880's or later editions (early ones have fewer songs).

Basic to Children's Games:
Gomme, Alice B., 1894, 1898, "The Traditional Games of England, Scotland and Ireland," two volumes, 531pp. Thames & Hudson reprint of 1984 bound in one volume. Many variants.

Frank C. Brown, "Folklore of North Carolina," no longer on line.