Box-folder 54:13

Scope and Contents From the Sub-Series: Contains notes and drawings (1920s-1960s) of the planets as observed by Tombaugh, his family members, and classmates at the University of Kansas; also included are records of seeing conditions and observations made in Los Angeles, California (1945-1946), and Las Cruces, New Mexico (1946-1948, 1986-1995). The notes and drawings are arranged alphabetically by planet.