Scope and arrangement
The collection dates from 1965 to 1971, and holds contact sheets and negatives that depict dancers and dance companies. This includes Juilliard productions choreographed by Anna Sokolow, José Limón, and Richard Englund, as well as performances and choreography by James Cunningham, Yvonne Rainer, Judith Dunn, Paul Sanasardo, Eleo Pomare, Fred Benjamin, Irene Feigenheimer, Bill Dunas, and Art Bauman. Effron had a detailed numbering and filing system, and each contact sheet and negative is labeled with a letter and number that corresponds to the descriptive index located in box 2, folder 3.