About

This Site

This Site

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

MOS

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 …