This site seeks to recreate the valuable information once presented on the website of the now defunct Maryland Organ Service, known as “MOSweb Online!” and formerly located at http://www.mosweb.com and http://www.bcpl.lib.md.us/~tthompsn

MOS or Maryland Organ Service was a provider of service and maintenance for Pipe, Parlor, and Electronic Organs in the Baltimore / Washington area from 1972 to 2005. Maryland Organ Service began in 1972 as a “retirement plan” for James Henthorn. At that time, he, a lifelong church organist and physics graduate of Johns Hopkins … Continue reading MOS →