Fitts, Frank E Mfg. & Supply Co.

Boston, MA (The Railroad, Telegraph, Electric and Steamship Builders' Buyers' Guide, 1897)

According to his obituary, this company was founded in 1870 by Frank E. Fitts as a manufacturer and seller of hardware items.  In 1872, the company facility burned down.  Organized / Certified September 25, 1894.  After Franks death, his son, Henry King Fitts took the reigns.  We have found them listed as late as 1943.