Manuscripts
Notes and calculations
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Unites States Department of the Interior
Manuscripts
Department of Interior publications lists, invoices with charges for books ordered by Sinclair.
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Calculations regarding solar eclipse by Thomas Cowper
Manuscripts
The Henry H. Sinclair papers number more than 1,600 items, including diaries, journals, newspaper clippings, and extensive personal and business correspondence. The complete date range is 1802-1937 (bulk dates 1909-1914). Subject matter includes mostly business matters of the Great Western Power Company, Palmer Oil Company, Mt. Hood Railway and Power Company, etc.; diaries and notebooks concerning power plant inspection trips, mostly to the Kern River in California; the Pasadena Tournament of Roses Association; the California to Honolulu yacht races. The collection also includes the papers of his son, Arthur W. Sinclair, pertaining to California Delta Farms, Inc. The collection also contains a diploma from Sinclair's membership in the American Institute of Electric Engineers and a manuscript, by Englishman Thomas Cowper, of calculations regarding a solar eclipse on June 24, 1778.
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Great Western Power Company: Resignation Announcement
Manuscripts
Official company document announcing resignation of H.H. Sinclair from his posts as vice president and general manager of Great Western Power Co., effective July 1, 1911.
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Genealogical notes on Barker and Jenkins families
Manuscripts
The Henry H. Sinclair papers number more than 1,600 items, including diaries, journals, newspaper clippings, and extensive personal and business correspondence. The complete date range is 1802-1937 (bulk dates 1909-1914). Subject matter includes mostly business matters of the Great Western Power Company, Palmer Oil Company, Mt. Hood Railway and Power Company, etc.; diaries and notebooks concerning power plant inspection trips, mostly to the Kern River in California; the Pasadena Tournament of Roses Association; the California to Honolulu yacht races. The collection also includes the papers of his son, Arthur W. Sinclair, pertaining to California Delta Farms, Inc. The collection also contains a diploma from Sinclair's membership in the American Institute of Electric Engineers and a manuscript, by Englishman Thomas Cowper, of calculations regarding a solar eclipse on June 24, 1778.
mssSinclairhh
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Diary
Manuscripts
Opening note - "Notes taken on trip June and July 1901 Kern and Kings rivers. D.C. Hauer, Jr., A.W. Sinclair, H.H. Sinclair." Notes include times and places, meal times, arrival and departure times.
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