I have a number of programs from various types of performances involving various relatives. One is of a performance called Forget Not A Pageant of the History of Argyle 1764-1964. The program contains the names of the actors and their parts. It also contains various types of information including synopsizes about the various "episodes" that were performed. The program was given to me as I did not attend this performance.
I think the best choice for citing these programs are as privately held artifacts. My question: How much information should I include about who was or was not present at a particular performance?