Administrative Information
Acquisition Information
The records of the World Calendar Association were given to the Library of Congress by Elisabeth Achelis, former president of the organization, in 1956. The papers of Wilhem Henry Souder, scientist, were transferred from the United States National Bureau of Standards in 1954 and subsequently added to this collection. Additional papers from the office of the president of the organization, now called the International World Calender Association, were given to the Library in 2001.
Processing History
The records of the World Calendar Association were arranged and described in 1957 and revised in 1997 by Margit Kerwin. An addition was processed in 2008 by Nicholas Newlin. The finding aid was revised in 2011.
Preferred Citation
Researchers wishing to cite this collection should include the following information: Container number, World Calendar Association Records, Manuscript Division, Library of Congress, Washington, D.C.