The Brady-Handy collection is a historical photo archive of the United States.
The collection is a cache of "mostly Civil War and post-Civil War portraits, with a small collection of Washington views" purchased by the Library of Congress in 1954, from descendants of Levin C. Handy, nephew and apprentice of photographer Mathew Brady.
[1] The collection included 10,000 original, duplicate, and copy negatives including about 4,000 original wet collidion plates and 1,300 glass plate negatives.
[2] There is also a Brady studio register dated 1870 to 1876 that includes notes such as "refunded—Baby would not sit still" and "Capitol Policeman, to be charged half price.
[2] According to the Library of Congress, all of the images in the Brady-Handy collection have now entered the public domain.