The papers of "Jackrabbit" Johannsen reflect his personal, professional and recreational activities, mainly between 1934 and 1985. The largest part of the papers consists of correspondence with friends and organizations, particularly relating to skiing and outdoor life. Family relations are also covered. A series of brief journals provides a record of some of his daily activities, from 1948 to 1984. The remainder of the fonds include publications about Johannsen, photographs, maps and personal documents such as passports.

The Alice Johannsen fonds reflects her lifelong involvement in nature, museums, community and her fealty towards her father, Herman-Smith (Jackrabbit) Johannsen. It consists of three series; personal and family series, 1994 to 1991, the Redpath series, 1919-1971 and a professional activities series, 1919-1971.