M. P. Moller

The company remained in business in Hagerstown until 1992, with hundreds of employees at its peak and a lifetime production of over 12,000 instruments.

Möller's earliest instruments were built by industry supply houses under contract, using tracker action to link the organ console to the pipe chests by mechanical means.

With the end of the war, Möller began to compete somewhat with Aeolian-Skinner for higher-end pipe organs, including the revision of the Skinner organ at Saint Thomas Church (Manhattan) in 1948,[6] although some of Möller's success in this area was due to quicker delivery rather than tonal superiority.

One example of Möller's product is the pair of instruments dedicated in 1965 at the Basilica of the National Shrine of the Immaculate Conception in Washington, D.C. A three-manual organ was installed in the transept and a four-manual in the rear gallery.

In the same year, Möller installed the large four-manual organ at St. Paul the Apostle Church in New York City.

This, coupled with serious labor problems over the years, lagging investments in the plant, and escalation in the cost of fabrication, contributed to the end of the company.

Several investors attempted to revive the company and move it from its ancient factory on Prospect Street in what is now the Hagerstown Historic District, but to no avail.

Möller's assets were auctioned off in 1993, including completed and almost-completed consoles, voiced pipes, hardwoods, specialized tools, and the factory building itself.