R. C. Brittain, Saugatuck, Michigan
R. Stephenson & Co., Ltd., Hebburn on Tyne, Northumberland, England
R.J. Morril, Collingwood, Ontario
R.T. Rogers, Saugatuck, Michigan
R.T.C. Ship Building Co., Camden, New Jersey
Ramage & Ferguson, Leith, Scotland
Rand & Burger, Manitowoc, Wisconsin