My father and grand-father are from Danville and I had relatives in Bloomsburg, just 9 miles away. Somewhere in my grand-father's family tree, one of my relatives created "Moyer's Oil of Gladness" in a time when snake-oil, elixirs and patent-medicines were very common. Most "worked" because they were alcohol and then became heavily promoted by doctors "treating" the wealthy during prohibition.
I should also note (given the history described in the links below), that my grand-father and father are also William and my uncle is John. My siblings and cousins each have a nice stamped bottle (first image) as a keepsake.
https://www.worthpoint.com/worthopedia/bloomsburg-pennsylvan...
https://americanhistory.si.edu/collections/search/object/nma...