Note from the OHS PC Database, derived from A Guide to North American Organbuilders, by David H. Fox (Richmond, Va.: Organ Historical Society, 1991). -

Active in Millersville, Pennsylvania, 1995.

Staff: James R. McFarland; William J. Napier.

Sources:

• Organ Handbook (Richmond, Va., Organ Historical Society, 1995), 68.

From Organ Database Builders editor Stephen Hall, September 20, 2019. —

Apparently the firm closed and turned its customers over to Columbia Organ Works circa 2017. A web search yields a single webpage with the message:

Thank you for 24 ½ years!

We have closed our doors.

You will be redirected in a few seconds to Columbia Organ Works
who will be available to service your instrument.

Source:

• S.D.G. Pipe Organs website, accessed September 20, 2019, http://sdgorgans.com/.