Bruce C. Greenberg grew up in Collingswood, New Jersey, attended Princeton University and received his B.A. in Politics in 1965.  He studied Political Science at the University of Michigan and earned a Ph.D in 1972.  From 1970 through December 1973,  he taught Political Science at Knox College in Galesburg, Illinois. He then served as Assistant Provost of Antioch College in Columbia, Maryland until December 1974.

Linda Ferguson Rosevear grew up in New York City and on Long Island.  She attended Syracuse University and earned a B.A. in International Relations in 1961.  She studied American Studies at the University of Michigan and earned a MA in 1967.

Bruce Greenberg met Linda Ferguson Rosevear when they were graduate students at the University of Michigan. They married in 1968 and have two children, Paul and Leslie.

In January 1975 Bruce Greenberg  founded Greenberg Publishing Company.  In 1976 he created Greenberg Shows to promote the hobby of model trains and his growing line of publications  In 1978 Linda Greenberg joined the company. In 1984 he founded Greenberg Properties and this company acquired buildings for use by Greenberg Publishing and Greenberg Shows.   From 1975 through 1992 Greenberg Publishing Company published over 200 publications primarily concerned with Lionel, American Flyer and Marx toy trains.  Many of these publications are available for sale on our other web site Sykesvillehistory.us.  This web site also has a comprehensive list of Greenberg publications  In 1991 the Greenberg's sold both companies to Kalmbach Publishing Company of Waukesha, Wisconsin, the publisher of Classic Toy Trains and Model Railroader magazines. In June 1993 Bruce Greenberg resigned as President of Greenberg Publishing Company.  Kalmbach then closed the Greenberg Publishing office in Sykesville and moved its activities to Waukesha.  Greenberg Shows remained in Sykesville until sold by Kalmbach in 2005. 

After selling Greenberg Publishing Company, Bruce Greenberg turned his energies to real estate development.  He substantially rebuilt the three buildings  that he owned in Sykesville, Maryland: the Rosevear Building, named for his father-in-law,  the Greenberg Building and the Firehouse.  He enjoyed the process of designing the building changes and managing the construction process.  In Linda Greenberg's book, Sykesville Past and Present, there are descriptions and photographs document these changes as well as changes to other Main Street buildings.

Bruce and Linda Rosevear Greenberg founded Brinkmann Publishing Company in 1997.  Brinkmann Publishing Company has published two family histories: The Brinkmann Family in 1997 and  Rosevear Family History: 1440-2005 in 2005.  The Company has also published Sykesville Past and Present, a history and walking tour of Sykesville, Maryland, and  Harry C. Grant, Co-Founder and Inventor, Lionel Manufacturing Company.  It has also published God's Gift by Ruth Dodge and Harmony, History and the Hope of Heaven and Hell by Graeme Easson