Wm. Enders was a tradename used by both Simmons and Shapleigh Hdw., St. Louis, (Simmons also used KK and Keen Kutter), in several variants; Oak Leaf, Royal Cannon Breech & Western Royale (single barrels) and Enders Royal Service, Royal Field, Royal Western, and Special Service.

Wm. Enders Oak Leaf, Walden, N.Y. J. Stevens (likely) Model 105





Oak Leaf single barrels were also marked "Patented August 12, 1913" by J. Stevens Arms & Tool Co., Chicopee Falls, Mass.

Enders Royal was a Hunter Arms Co. Fulton



Enders Royal American, possibly by both Crescent and Hopkins & Allen



Crescent Enders Special Service



There was an Enders family in Schoharie County, New York. Walden N.Y. is in Orange Co.
In 1854 there was a Enders, Simmons & Co. wholesale clothing store in St. Louis
A Wm. Enders was in St. Louis in 1898
https://books.google.com/books?id=m3I-A ... 6-PA30&lpg
He was a principle (still sale executive?) with Simmons Hdw. in 1912
https://books.google.com/books?id=8Zw7A ... -PA142&lpg
A 1913 Wm. Enders trademark registration lists N.Y. and St. Louis
https://books.google.com/books?id=FWtZA ... =PA685&lpg

Simmons Wm. Enders Oak Leaf tools, 1913
https://books.google.com/books?id=dJs7A ... 6-PA19&lpg

In 1914 Enders was a Vice President
https://books.google.com/books?id=tpY7A ... =PA348&lpg
A trademark was registered for the name in 1919 also
https://books.google.com/books?id=eIixl ... =PA186&lpg
and a patent
https://books.google.com/books?id=CA5WA ... =PA649&lpg

Enders may have left Simmons and started his own hardware line in 1915; Wm Enders Mfg. Co. St Louis
http://www.missouricorps.com/corp/361813.html

In 1942, Mars-Enders Hardware was established in Brentwood, a St. Louis suburb

A Simmons letter dated 1904 listed Enders as "Sales Manager"