2004-10-30/2019-02-11 - From the OHS PC Database, derived from A Guide to North American Organbuilders, rev. ed. by David H. Fox (Organ Historical Society, 1997). - Operated Ballard Pipe Organs of San Antonio, Texas, by 1986; active 1996. Staff: G. Mark Caldwell; Peter W. Chappell. Sources: American Institute of Organbuilders, Membership Roll: 1982. American Institute of Organbuilders, Membership Roll: 1986. American Institute of Organbuilders, Membership Roll: 1996.
2016-08-25/2019-02-11 - From the OHS PC Database Builders Listing editor, Mar 15, 2016. - John G. Ballard operated Ballard Pipe Organs of San Antonio, Texas from the 1980s; the firm was active until at least 2008, although it was reorganized under the name John G. Ballard & Associates, LLC in 2005.1 The firm serviced and rebuilt electro-pneumatic instruments, and may have been associated with the Rodgers Instruments firm; the firm did the pipe work for the pipe/electronic combination instrument at St. Theresa Catholic Church in Austin, Texas in 2008.2 The firm was no longer active in 2016. Sources: CorporationWiki, John G. Ballard, http://www.corporationwiki.com/Texas/San-Antonio/john-g-ballard-associates-llc/37181212.aspx, Accessed Jan. 11, 2016 Rodgers Instruments website, http://www.rodgersinstruments.com/installation/st-theresa-catholic-church-austin, Accessed Jan. 11, 2016. CorporationWiki, John G. Ballard
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