Source, Genealogical

The origin of genealogical information, which may be a document, book, website, person, artifact, photograph, audio recording, video recording, or other item containing data. Sources may be either original (not derived from a prior record) or derivative (extracted, transcribed into a typescripted or handscripted copy, abstracted, etc., from an original record). Exact, complete copies, unaltered when photocopied or scanned into digital images, are often considered to be equivalent to the original record, but they are still copies and your citation should record them as such.

Source: Elizabeth Shown Mills, Working With Historical Evidence: Genealogical Principals and Standards, NGSQ, 87:3 (September 1999).