The story
Dorrance Publishing was founded by Gordon Dorrance in 1920. The Catalogue of Copyright Entries for that year lists "Dorrance & company, inc." publishing works The Pocket Chesterfield and Broken Shackles. Dorrance set up the company after a work he was editing did not complete publication with Scribners.
The company was established in Philadelphia and periodically changed address within Philadelphia and environs. By 1989 it was located in Monroeville, outside Pittsburgh. By 1991, the company's address was in Pittsburgh.
They have been accredited by the Better Business Bureau (BBB) since 1995. The BBB lists them as having started in June 1989, and also operating under the alternate publishing imprint names I-Proclaim Books, Red Lead Press, RoseDog Books, and Whitmore Publishing Company.
From Wikipedia’s article on Dorrance Publishing Company, shared under CC BY-SA 4.0.4