Do you have a copy of "A Directory of Lancaster County Pennsylvania Blacksmiths"? Published by MWTCA Area P August 2001. The book is copyrighted by the MWTCA.
No sir, I do not. I pretty much rely on on-line sources such as the national archives, newspapers.com, ancestry, google books, and local library on-line archives. The page I referenced above on my site relies on searches such as "vice maker," "vise maker," vise co," and so on.