James H Waldo and John F Barrows were operating musical manufacturing companies out of Saginaw Michigan in the last decade of the 19th C.  

Instruments included banjos and a full range of mandolins and the company also took patents out on their design of tailpiece.

It is not clear if there was a business relationship between them but Waldo had banjos made for him by Schall, also under the model TW Reamer.

Images courtesy of the estate of Richard Evans