In the late 70's and early 80's my dad built and repaired banjos under the name of "Kenfield Banjo Works". I recently obtained the build records and pictures of many of the banjos he built.
If you own and/or have questions on one of his banjos, contact me, I may be able to come up with the information you need. I'd be interested in any information you can provide on the whereabouts of his banjos, how it was aquired, etc.
I also have pictures of some of the construction processes, if there is interest I will upload them here.
The name also later appeared on some investment software he developed while he was involved with the National Association of Investors Corporation (NAIC).