2004-10-30/2019-04-29 - From the OHS PC Database, derived from A Guide to North American Organbuilders, by David H. Fox (Richmond, Va.: Organ Historical Society, 1991). - With Hook & Hastings of Boston, Massachusetts, 1874, agent. Sources: Organ Handbook 1986 (Organ Historical Society), 95. Barbara Owen. Elizabeth Towne Schmitt.
2015-11-13/2020-04-09 - See main entry: E. & G. G. Hook & Hastings
2018-05-07/2019-02-11 - From Organ Database Builders editor Charles Eberline, April 1, 2018. - This may be a misspelling for Cadwaller. Boston city directories for the years between 1865 and 1889 (with some gaps) list a Thomas (or Thos.) Cadwallader (or Cadwalader) who was an organ tuner (1874 is one of the gap years); in the directories for 1878 through 1886 his work address is the business address of Hook & Hastings.
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