Henry Landman donated the Henry Landman papers to the United States Holocaust Memorial Museum in 1994, 1995, 1997, and 2004. His son, Richard Landman, and Ralph López, the author of his biography, are also listed as donors of the biography. The accessions previously cataloged as 1994.A.0339, 1995.20, and 2004.367 have been incorporated into this collection. Additional material was donated by Richard Landman and Lisa Landman in 2017.