Register of the Woodruff (Ennis C.) Papers, 1912-1968

Processed by Don Walker; machine-readable finding aid created by Don Walker
Holt-Atherton Department of Special Collections
University Library, University of the Pacific
Stockton, CA 95211
Phone: (209) 946-2404
Fax: (209) 946-2810
© 1998
University of the Pacific. All rights reserved.

Register of the Woodruff (Ennis C.) Papers, 1912-1968

Collection number: Mss155

Holt-Atherton Department of Special Collections

University Library

University of the Pacific

Contact Information

  • Holt-Atherton Department of Special Collections
  • University Library, University of the Pacific
  • Stockton, CA 95211
  • Phone: (209) 946-2404
  • Fax: (209) 946-2810
  • URL:
Processed by:
Don Walker
Date Completed:
November 1998
Encoded by:
Don Walker
© 1998 University of the Pacific. All rights reserved.

Descriptive Summary

Title: Woodruff (Ennis C.) Papers,
Date (inclusive): 1912-1968
Collection number: Mss155
Creator: Jeanne Woodruff Mullins
Extent: 3.5 linear ft.
Repository: University of the Pacific. Library. Holt-Atherton Department of Special Collections
Stockton, CA 95211
Shelf location: For current information on the location of these materials, please consult the library's online catalog.
Language: English.

Administrative Information


Collection is open for research.

Preferred Citation

[Identification of item], Woodruff (Ennis C.) Papers, Mss155, Holt-Atherton Department of Special Collections, University of the Pacific Library

Access Points

personal name

Woodruff, Ennis Casselberry (1894-1977)
Woodruff, Gracella S.

corporate name

Pacific Gas & Electric
University of the Pacific (Stockton, Calif.)
University of California, Berkeley. School of Aviation
United States. Army Air Forces -Aviation Ground School (Ft. Lewis, Wash.)
Stockton Unified School District (Calif.)
United States Plywood Corp. (Anderson, Calif.)
Georgia Pacific Company
Winton Lumber Company (Martell, Calif.)
Humboldt Plywood Company (Arcat, Calif.)
Boy Scouts of America -California -Stockton


Engineers -Correspondence
Engineering design -California -Sources
Air pilots, Military -Instruction and study -California
Electric engineering -California -San Joaquin County
Industrial safety -California


Electrical engineer, Ennis Casselberry Woodruff (1894-1977), graduated from the University of California (1916), taught aviation at the same institution during World War I, and was then employed by Pacific Gas and Electric in the San Joaquin County region for nearly forty years (1920-1959). He also taught a safety course at the University during World War II (1943). While employed by PG & E, and, especially after his retirement, Woodruff served as an electrical consultant to: the College of the Pacific (1947-62); the Stockton Unified School District (1932-1957); various commercial enterprises in Stockton---most notably the Lincoln Village Shoping Center (1961-67); and, some lumber companies in the Eureka area (1950s). Woodruff was also involved in Stockton community affairs, notably with the Boy Scouts, for whom he established the first local Explorer Troop. His hobby was flower gardening, work which he approached (and documented) with the same meticulous thoroughness he applied to engineering activities.

Scope and Content

The Woodruff Papers contain: correspondence; datebooks (1916-1958); professional notes, drawings and plans pertaining to Woodruff's lengthy career as an electrical engineer in San Joaquin County (1920-1968). They also contain: Mr. and Mrs. Woodruff's school notes; early financial records (1912-17); gardening records (1950s); and, miscellaneous biographical materials.

Container List






1.2-Financial Records, 1913-1943


1.3-University of California, 1916


1.4-Job applications, 1916-17


1.5-US Army Aviation corresp., 1917


1.6-Aviation literature, 1917-19


1.7-US military pamphlets, 1917-18


1.8-Aeronautics lecture notes, 1917-18


1.9-Do. #2


1.10-Service record, 1917-19


1.11-Corresp., 1917-18


1.12-PG & E, 1919


1.13-Misc. Corresp., 1920-59


1.14-University of California Safety Course, 1943 #1


1.15-Do. #2


1.16-Do. #3


1.17-Retirement from PG & E, 1959


1.18-Corresp., 1959


1.19-Clippings, misc.




BOX 2: DATE BOOKS & LOG BOOKS [most, though not all, of these items seem to have been used for PG & E work in San Joaquin County]


2.1-Datebook, 1916


2.2-Datebook, 1917


2.3-Account Book, 1917


2.4-Datebook, 1919


2.5-Log Book, 1920


2.6-Heat requirements, Manteca area, 1924-34


2.7-Log Book, 1927


2.8-"Camping," 1929


2.9-Log Book, 1929


2.10-Datebook, 1929


2.11-Datebook, 1930


2.12-Datebook, 1931


2.13-Log Book, 1932


2.14-Log Book, 1933


2.15-Log Book, 1935


2.16-Do., 1936


2.17-Do., 1937


2.18-Do., 1938


2.19-Do., 1939


2.20-Log Book, 1940


2.21-Do., 1941


2.22-Do., 1942


2.23-Do., 1943


2.24-Do., 1944


2.25-Do., 1946


2.26-Camping, 1947


2.27-Datebook, 1949


2.28-Datebook, 1950


2.29-Datebook, 1951


2.30-Datebook, 1952


2.31-Flower garden watering schedule, 1952


2.32-Datebook, 1953


2.33-Datebook, 1954


2.34-Datebook, 1955


2.35-Datebook, 1956


2.36-Datebook, 1957


2.38-Datebook, 1958




3.1-COP electrical system, 1923-48 [incl. architect's drawings & maps of campus]


3.2-Report on 2.16 KV electric distribution system at COP, 1947


3.3-COP electrical system, 1948-1950


3.4-Report on changes in electrical distribution system at COP, 1949; misc. corresp. & notes re changes, 1949-57


3.5-Baxter & Memorial stadiums, 1940s-50s


3.6-Memorandum re Felix Wallace, COP Engineering faculty, 1950


3.7-COP electrical systems, 1950s


3.8-Stockton College jobs, 1952-57


3.9-UOP cluster colleges electrical work, 1961-62




4.1-Ripon Union H.S., 1932


4.2-Lodi H.S. job notes, 1950 [brown spiral binder]


4.3-Misc. engineering studies, 1953


4.4-Bear Creek Vineyards, Lodi, 1959


4.5-San Joaquin General Hospital, 1960


4.6-Grover Tank & Mfg., Lodi---original drawings, 1960


4.7-Do.---later drawings, 1960


4.8-Stockton Congregational Church heating system, 1962


4.9-Banta Carbona Irrigation Distr. power line over Hwy I-5, 1968


4.10-Do. #2


4.11-Plans for E.E. Storrs Electric, Stockton, 1960-61


4.12-San Joaquin County PG & E general file


BOX 5: LINCOLN VILLAGE SHOPPING CENTER (STOCKTON) ELECTRICAL JOBS [10 env. of wiring diagrams; architectural drawings; corresp. & notes, 1961-67]




6.1-Electra Distr. [southern Sierra foothills] Transmission & Distribution Trunks map


6.2-Possible curtailment of waste practices...US Plywood Corp., Anderson CA, 1953


6.3-Electrical fuel & steam usage analysis...Humboldt Plywood, Arcata CA, 1954


6.4-Georgia Pacific Co., Samoa CA, 1959


6.5-Winton Lumber Co., Martell CA, 1960




7.1: Gracella S. Woodruff college notebooks, 1914-16 [7]


7.2: ECW ledger, 1912-17


7.3: ECW gardening book, 1950s


7.4: Misc. PG & E employment-related papers


7.5: SJ County Schools employment-related papers [sent to Mrs. Woodruff]


7.6: Corresp. w/ City of Stockton re employment, 1950s [incl. wage scales]


7.7: PG & E Pump Testing Service binder, 1935


7.8: "Western Fertilizer Handbook," 1953