What does Mf., O.H., M.C., and C.R. mean in the Collection Number?
Mf. indicates that a collection is in a microfilm format, O.H. that the collection is an oral history, M.C. a map format (when everything in the collection is a map), and C.R. indicates church records. Occasionally there will be a collection that does not have a Collection Number but rather a designation that begins with Miscellaneous. This is a practice no longer used by the Manuscript Collection, but in the past when a collection included a small number of photographs, old newspapers or one set of Bible records with no expectation of additions, it was given a designation of Miscellaneous Photographs, Miscellaneous Newspapers, or Miscellaneous Genealogies and filed in a different location in our stacks.