Dave Lowental reports two unlisted items:
This US TB pin back button, issued by the Jefferson County Anti Tuberculosis Association, encourages the public to be safe, and get a chest x-ray. Those who participated were rewarded with this cool button, There are quite a few different states with a "Jefferson County", but this seems to be from Alabama. Mass x-ray screening campaigns were done from the 1930s to the 1960s, and from the looks of it, I would guess this to be from before WW2.
Dave also found this lovely Red Cross seal tied on Marion Ohio December 22, 1910. Marion is about 18 miles south of Bucyrus, which was the home of the Monnette Public Hospital. Note that "Monnette" is printed on the red cross. The card was sent by Walter Monnette, undoubtedly a member of the family that endowed the hospital. More info on the hospital here.