Bill wrote:

Bill whose Dad was into Creosote, Asbestos, Mercury and Cyanide and
what ever was a good tool. Benzene good for cutting oil and grease.
He also introduced me to Rodale yada yada go figure .
Don't know why the mercury was about but may have been useful in
plumbing stuff?

Never heard of it being used in plumbing. Perhaps he was a part-time
dentist or a pox doctor.

David