As summer heats up, it is worth recalling the plight of the women adjusters in the U.S. Mint during the Civil War. Recently scanned by RogerBurdette from the U.S. National Archives, this letter from Philadelphia doctor C. H. Porter to President Lincoln, August 29, 1861, says it all:

The presence of the letter in the files of the Secretary of the Treasury suggests that it was not passed on to Lincoln. No reply is recorded herebut may exist elsewhere in the National Archives. This letter is from record group 104 (U.S. Mint), entry 216 (Letters sent and received by theSecretary of the Treasury relating to the Mints), vol. 21, p. 317.

Link to National Archives & Records Administration papers on Newman Portal:
https://nnp.wustl.edu/Library/Archives?searchLetter=U