USPHS Centennial Medals [solved]

I have two of these medals and would like to create a exonumia page for them. They are medals that were given to workers of the U.S.P.H.S. Commissioned Corp in celebration of the centennial in 1989. A page illustrating them in the Smithsonian catalog is here: https://americanhistory.si.edu/collections/search/object/nmah_1134093. I wish I knew more about the history of the medal though. All I know is that they likely belonged to my grandfather who did public health work, but that is the extent of my knowledge.

Hello,

 

at Numista, anyone can add new pieces, you can try it here: https://en.numista.com/catalogue/contributions/pre_nouveau.php?type=exonumia