The Barnes Collection is the photographic morgue file of the Barnes Company, which specialized in the production of albums reproducing the faces and giving capsule biographies of members of Congress during the latter part of the nineteenth century. The collection includes 501 imperial carte de visite photographs, principally of members of Congress from 1872 to 1876, many of the photographs being embellished by added signatures trimmed from letters or other documents.

A generally chronological collection of mail received in response to broadcasts made by Frank Reynolds. Some folders contain replies by Reynolds, but most do not.