I have encountered several surnames that were originally job titles. In my own genealogy, the
name "Thayer" meant someone who made a "tea" pronounced "tay" out of bark for tanning leather.
The name "Scudder" derived froms specialty of scraping hair off hide after treatment had loosened it.
And the name "Bate" referred to speciallist in treatment to remove proteins that do not contribute
to strength of leather.(Meaning using less revolting agents than "puer".)