GENERAL
Welsh Tract - Daily memorandum - 1898
Agreement - Risdon Iron Works & Aron Bayles. 1898, Yuba Construction Company
Feather River Exploration Company - Incorporation - 1899
Lumber lists - 1901 and n.d.
Thomas Couch Estate - Papers - 1902
Agreement - W. P. Hammon & R. D. Evans & the United States - 1903
Marysville Property - Agreement - 1905
Marysville Property - Deeds - 1905
Yuba Construction Company - Incorporation - 1906
E. A. Forbes - Deed to W. P.Hammon - 1906
W. P. Hammon - Deed to Yuba Construction Company - 1906
E. A. Forbes - Deed to Yuba Construction Company - 1906
Agreement - Maurice C. Couchot & Yuba Construction Company - 1906
Investment in plant and equipment - 1907
Minutes - Board of Directors meeting - 1910
Deeds - W. P. Hammon to Yuba Construction Company - 1910
Deeds - Yuba Construction Company to Hammon - 1910
Western Engineering Construction Company - Agreement - 1910
Western Engineering Construction Company - Sale - 1910
Mercantile Trust Company of San Francisco - Papers - 1910
Specifications (misc.) - 1910-1937
Minutes - Board of Directors - 1911
Southern Pacific Company - Lease - 1911
Certified list of Stockholders & Dividends - 1912-1916
Hammon Engineering Company - Contract - 1913
Stockholder's meeting - Proxies - 1913
F. W. Osgood - Power of Attorney - 1913
Stock cancellation - 1914
Taylor-Wharton Iron & Steel Company - 1914
California Debris Commission - 1914-1919
Petition for Change of Name - 1917
Articles of Incorporation - 1917
Correspondence re name change - 1917
Papers re change of name - 1917
Account - Opening entries - 1917
Southern Pacific Company - Lease - 1918
Hammon Consolidated. Gold Fields - 1922-1924
Yuba Manufacturing Company -Papers - 1930
Monthly reports - 1931-1932
Yuba Manufacturing Company -Papers - 1932
Master file - Dredges & weights, etc. - 1934
Miscellaneous Correspondence - 1913-1941
Financial Report - October 31, 1912
Annual Reports - 1946-1955 (missing 1953-1954)
Annual Reports - 1957-1958 (Yuba Consolidated Industries, Inc.)
Yuba Consolidated Gold Fields - Annual Report 1919
Yuba Consolidated Gold Fields - Annual Report 1920
Yuba Consolidated Gold Fields - Annual Report 1922
Yuba Consolidated Gold Fields - Annual Report 1956
Boston & Oroville Mining Company - Statements of Prospecting - 1901-1904
Boston & Oroville Mining Company - Notes - 1901-1905
Candle Creek, Seward Peninsula, Alaska - Report - n.d. (pages 1-14 - Summary and Capital required)
Gold Hill Dredging Company - Monthly reports - 1935-1937
Gold Hill Dredging Company - Report of Examination by Hood and Strong, Certified Public Accountants - June 30, 1950
Gold Hill Dredging Company - Shift Reports and meeting notices - 1941
LaGrange Gold Mines, Inc. - Reports - 1933-1934
LaGrange Gold Mines, Inc. - Report - 1934
Natomas Company - Annual Report - 1957
Ophir Mining Company - Agreement with the Consolidated Virginia Mining Company - 1934
Oroville Gold Dredging and Exploration Company - Notes [1905]
Oroville Gold Dredging Company - Report - 1954
Portuguese American Tin Company - Report - 1923
Shasta County (Happy Valley) land - Report - 1925
Wallace Dredging Property - Report - 1935
Alaska Mines Corporation - Agreement - 1916
Alaska Mines Corporation - Agreement - 1917. Dredge #45 (Rebuilt from #7)
Alder Creek Bridge - Specifications - 1912
Balfour, Guthrie, & Company - Specifications for centrifugal pumps - 1912
Baumhoff & Fisher - Specifications for Dredge - 1934
Baumhoff & Fisher - Notes on inspection - 1941 (photographs of Dredge #106 & Dredge #99)
Blevin-Mallon - Specifications for pumping plant - 1915
Boise King Placer - Notes on inspection - 1941 (Dredge #153)
Bucyrus Company - Proposal for steel hull - 1909
Bucyrus Company - Proposal for knocked down steel hull - 1910
Bucyrus Company - Proposal for dredge machinery - 1910 (Feather River #3)
Bucyrus Company - Specifications for dredge for Union Dredging Company - 1910
Bucyrus Company - Specifications for dredge machinery for the Union Dredging Company - 1911
Byron Bethany Irrigation Company - Specifications for pumping plant apparatus - 1915
Canton Province Mining Company (China) - Estimate - 1914
Capital Dredging Company - Specifications - 1937
Report on Capital #4 - 1941
Caracolas Tin - Dredge #67 - n.d.
Carrville Gold Company - Correspondence and drawings - 1942-1946
Casadepaga Mining Company (Alaska) - Estimate - 1911
Chiksan Mining Company (Korea)- Estimate - 1913
Curtis Locklin Dredging Company - Estimate - 1914
Mr. Cutler (Alaska) - Specifications - 1913
Emigrant Dredging Company - Report - 1946. Emigrant Dredge #15
Empire Navagation Company - Specifications - 1913
Mark G. Evans (Colorado) - Specifications - 1917
Fairplay, Colorado - Segregations - 1921. Dredge # 42 - Reconstruction of #8
Folsom Development Company - Revised list of motors for Folsom #6 - 1907
Folsom Development Company - Proposal - 1908. Removal of parts - Folsom #1
David Fox (Alaska) - Estimate - 1911
Sam Gaylord (Alaska) - Estimate - 1912
Gold Creek - Proposal and Specifications - 1929
Frank Griffin (Oroville) - Estimate - 1913
Herr Grochowski (German) - Specifications - 1913
Mr. Hammon - Estimates for dredge in Idaho - 1910
W. P. Hammon - Specifications - 1920
Hammon Consolidated Gold Fields - Proposal - 1922. Nome Dredge #1
Hammon Consolidated Gold Fields - Proposal - 1922. Nome Dredge #2
Hammon Consolidated Gold Fields - Proposal and papers - 1924 (Nome Dredge #4 - Yuba #56)
E. Hodson - Specifications - 1912
Houston Dredging Company (Alaska) - Estimate - 1912
Arthur W. Johnston (Alaska) - Estimate - 1912
Johnston Brothers - Agreement and specifications - 1913-14. Yuba dredges #3 & #4
J. E. Jones (Alaska) - Estimate - 1912
LaGrange Gold Dredging Company - Agreement - 1921. LaGrange Dredge #52
Lancha Plana Gold Dredging Company - Correspondence and Diagrams - 1946 (Dredges #114 & #115)
Lotowana Mining Company (Arizona) - Estimate - 1912
McClenahan-Kraner-Carter Company - Specifications for pumps - 1916
McLeod River Mining Corporation, Ltd. - Estimate - 1929
Magpie Dredging Company - Specifications - 1909
Magpie Dredging Company - Specifications - 1910
Mambulac Placer Company, Manila, P.I. - Specifications - 1914
Mokelumne Mining Company - Proposal - 1911
Natomas Consolidated of California - Proposal for enlargement of rock crushing plant - 1910
Natomas Consolidated of California - Specifications - 1911 (Natoma #10)
Natomas Consolidated of California - Proposal - 1911 (Natoma #21)
Natomas Consolidated of California - Segregation Lists - 1912 (Natoma #7 & #8)
Nechi Mines (Columbia) - Estimate & Specifications - 1914
T. H. Ohyama - Specifications - 1919
Ophir Gold Dredging Company - Proposals - 1910
Oroville Dredging, Ltd. - Specifications - 1910
Oroville Gold Dredging Company - Inspections - 1941-42. Dredge #151
Pearce, Crutcher & Iver Johnson (Alaska) - Estimate - 1912
Perry Schroeder - Inspection report - 1947. Dredge #137
Pidduck Brothers (Seattle) - Estimate - 1911
Pioneer Company of Siberia, Ltd. - Estimate - n.d.
Placer Management Ltd. - Drawings - 1936. Bulolo #5 - Yuba #119
Polar Mining & Dredging Company (Alaska) - Estimate - 1912
Portuguese-American Tin Company - Specifications - 1920
Powder River Dredging Company - Specifications - 1912
Powder River Dredging Company - Proposal and specifications - 1915 (Dredge #2)
Reclamation District #1600 - Specifications - 1916
Harry Ruhl (Alaska)- Estimate - 1912
Sacramento Valley Westside Canal Company - Specifications - 1916
Santa Fe Dredging Company -Specifications - 1917 (Yuba #43)
Shasta Dredging Company - Specifications - 1908
South Park Dredging Company - Contract - 1921-22 (Featherville #1)
Tarr Mining Company - Proposals - 1910
Tuolumne Gold Dredging Company - Correspondence and Specifications for rebuilding Dredge - 1941
U.S. Smelting, Refining, & Mining Company - Correspondence re building Dredge #150 in Alaska - 1941
G. R. Williams (Alaska) - Estimate - 1912
Yosemite Dredging & Mining Company - Agreement & Specifications - 1914 (Reconstruction - Yosemite Dredge #1)
Yuba Consolidated Gold Fields - Agreement & Specifications - 1912 (Dredge #14)
Yuba Consolidated Gold Fields - Agreement & Specifications - 1914 (Reconstruction - Yuba #3 & Yuba #4)
Yuba Consolidated Gold Fields - Proposal & Specifications - 1915 (Yuba Dredge #15)
Yuba Consolidated Gold Fields - Proposal & Specifications - 1916 (Yuba Dredge #17)
Yuba Consolidated Gold Fields - Proposal & Specifications - 1917 (Yuba Dredge #18)
Yuba Consolidated Gold Fields - Estimates - 1933 (Work on Dredge #17 & Dredge #18)
Yuba Consolidated Gold Fields - Specifications - 1933
Yuba Consolidated Gold Fields - Specifications - 1935
Yuba Consolidated Gold Fields - Specifications - 1936
Yuba Consolidated Gold Fields - Specifications - 1939
Yuba Consolidated Gold Fields - Specifications - 1941
Yuba Consolidated Gold Fields - Jig Installation - 1947. Yuba Dredge #17 (Dredge #49)
Yuba Consolidated Gold Fields - Jig Installation - 1951. Yuba Dredge #17 (Dredge #49)
Yuba Consolidated Gold Fields - Correspondence - 1954. Biggs Dredge #4 (Yuba #146)
Yuba 13 - Exhibits A, B & C - n.d.
Specifications - 8 Cu.Ft. Dredge - 1909
Specification #1002 - 5 1/2 Cu.Ft. Dredge - 1909
Specification #1016 - 13 1/2 Cu.Ft. Dredge - 1910
Specification #1020 - 2 1/2 Cu.Ft. Dredge - 1910
Specification #1024 - 7 1/2 Cu.Ft. Dredge - 1911
Specification #1038 - 2 1/2 Cu.Ft. Dredge - 1912
Specification #1039 - 3 Cu.Ft. Dredge - 1912
Specification #1040 - 1 1/2 Cu.Ft. Dredge - 1912
Segregations - Dredges #32 & #33 - 1913
Specification - #1108 - 16 Cu.Ft. Dredge - 1916
Specification #1121 - 8 1/4 Cu.Ft. Dredge - 1919 2nd copy rewritten for #1125 - 1920
Estimates - 2 1/2 Cu.Ft. Dredges - 1911
Estimates - 3 1/2 Cu.Ft. Dredges - 1911-1929
Butte & El Oro Dredging Companies - 1911
Mr. Clarke (British Columbia) - 1911
Arthur W. Johnston (Alaska) - 1911
D. Hoogerndorm (Alaska) - 1911
Frank Gaylord (Alaska) - 1912
Bud Creek Dredging Company (Alaska) - 1912
Frank I. Reed (Alaska) - 1912
D. R. Carrier (Alaska) - 1912
Wild Goose Mining & Trading Company - 1912
Orsk Goldfields Ltd. (Siberia) - 1912
Mitchell & Cole (Alaska) - 1912
J. V. Stewart (Colombia) - 1912
S. Yebara (Korea) - 1912
A. M. Schmitz (Alaska) - 1912
Adam Umholz - 1912
M. M. Tolle (Idaho) - 1912
August Garnier (Alaska)- 1912
Mr. Cutler (Alaska) - 1913
Clarence Berry - 1913
Getz Brothers (Siberia) - 1913
United States Gold Dredging & Rubber Company (Ecuador) - 1913
Cole & Mitchell (Alaska) - 1913
Yosemite Dredging Company - 1913. Dredge #36
General Development Company (Colombia) - 1914
Irving S. Joseph - 1914
Cole & Mitchell - 1914
C. W. Evans (Oregon) - 1914
Yukon Gold Company - 1914
W. W. Woodard (Alaska) - 1915
Chinese War Ministry (Mr. Kwong Wu) - 1917
Harron, Rickard & McCone (Russia) - 1917
Peace River Gold Dredging Company - 1924
Talmage Rawhide Mines Company - 1925
Mine & Smelter Supply Company - 1925
P. E. Morse (Oregon) - 1926
C. G. Lewis (Alaska) - 1926
R. A. Hutchinson (Arizona) - 1929
Estimates - 5 Cu.Ft. Dredges - 1909-1917
Viloro Syndicate Ltd. - 1909
Magpie Dredging Company - 1909-1910
Pleasant Creek Gold Dredge Mining Company - 1911
Philippine Islands - 1911
J. C. Corwin (British Columbia) - 1911
Philippine Dredging Prop. Ltd. - 1912
Tin Cup Gold Dredging Company (Colorado) - 1912
M. Mayekawa (Japan) - 1912
Edward G. Cahill (South Africa) - 1912
Frank B. Ingersoll (Manila) - 1912
Mecke & Company (Colombia) - 1912
Robert D. Pike (Oregon) - 1912
Bodas (Colombia) - 1912
Colonel Pabst (Idaho) - 1913
Ingersoll & McDonald - 1913
H. K. Owens & A. V. Bouillon (Alaska) - 1913
Santa Fe Dredging Company, per Herr-Rubincam Supply Company (New Mexico) - 1917
W. W. Wishon (British Columbia)
Estimates - 9 Cu.Ft. Dredges - 1910-1934
Marysville Gold Dredging Company - 1910
Mr. Hammon (Idaho) - 1910
Union Dredging Company - 1910-1911
T. B. Davidson (Alaska) - 1910
Koyukuk River (Alaska) - 1911
Union Dredging Company - 1911
Neil Development Company - 1911
W. P. Hammon (Oregon) - 1911
Mambulao Placer Company (Manila) - 1914
C. H. Noulin (Boliva) - 1915
F. B. Ingersoll (Philippine Islands) - 1915
Yukon Gold Company - 1915
W. P. Hammon (Fairplay Dredge) - 1920
W. P. Hammon (Idaho)
LaGrange Dredging Gold Dredging Company - 1921
W. P. Hammon (Alaska) - 1921-1922
C. H. Thompson (Arizona) - 1924
Diesel Electric Power Plant (Alaska) - 1924
Hassayampa Placer Gold Mining Company (Arizona) - 1925
Joseph H. Hoadley - 1925
W. P. Hammon (Fairplay, Colorado) - 1926
Yellowstone Dredging Company (Oregon) - 1926
Huanuni Placers (Bolivia) - 1929
Gold Creek Mining Company (Montana) - 1931
Yuba Consolidated Gold Fields - 1932-1934
Estimates - 10 Cu.Ft. Dredge - 1936
Colombian Mining & Exploration Company, Ltd. - 1936
Estimates - 15 Cu.Ft. Dredges - 1910-1914
Feather River #3 - 1910
Neil Development Company (Mexico) - 1911
Yuba Consolidated Goldfields - 1912
Benj. C. Warnick (Snelling) - 1912
Yuba Consolidated Goldfields - 1912
Chiksan Mining Company (Korea) - 1913
H. L. Meade (Trinity Center) - 1914
Joseph D. Evans
Yuba Construction Company - Advertisements, Spring campaign - 1916
Yuba Manufacturing Company - Magazine advertisements - 1936-1948
Yuba Manufacturing Company - Advertisements and Pamphlets
Yuba Consolidated Gold Fields - Advertisement for 6 Dredges - 1956
Yuba Industries, Inc. - Advertisement - 1956
Yuba Consolidated Industries, Inc. - "This is Yuba" - 1957
Yuba Consolidated Gold Industries, Inc. - Advertisements - 1957
Scrapbook - Dredges and Dredging - 1932-1941
Scrapbook - Silver mining, Ranching, Dredging - 1917-1940
Scrapbook - Tractors and Dredges - 1913-1914
Scrapbook - Tractors and Dredges - 1915-1916
Oil, Miscellaneous, Mexico, Mining - 1924-1956
Scrapbook - Senate Bill 713 (Kehoe Bill) - 1913
California Gold Dredging & Allied Industries
Communications issued and newspaper clippings
Taylor-Wharton Iron & Steel Company - Album of photographs showing tumblers they manufactured
Westinghouse Electric Company - Proposal on electrical equipment for Dredge #86 - 1930
PHOTOGRAPHS
Benecia Plant - Building barge and loading freight - 1949-1956
Benecia Plant - Interior and yard scenes - 1930-1938
Products in the Field - Dredges, Movalls - 1938-1940
Operations Abroad - Dredges & Movalls in locations abroad - n.d.
Products in the Shop
The "Hover" Dredge" - Dredge #173 - 1956
The Franciscan - Cargo ship - 1958
Supia, Colombia - Dredges and rocks, Supia and Pato, Colombia - 1946
Yuba Dredge #112 (Montana) - 1936
Yuba Dredge #136 (Oregon)
Yuba Dredge #150 (Alaska)
Yuba Dredge #136 (Oregon)
Perry Schroeder Dredge (Canyon Ferry Dam)
Panob Dredge - Photographs and letter re Panob Dredging Company, Lincoln, Ca. - 1947
Yuba-made Movalls in Utah and Wyoming
Operations in Tampa, Florida - Tug "Susan Moran"
Album - Photographs numbered 1228-1232, 1236-1241
Dredges, Hammonton, ships
Miscellaneous photographs
Postcards of Grass Valley
Callahan Construction Co, Sutter Basin
Album - Labeled "Pumps" and "Book #27"
Photographs of work in the field.
MAPS AND BLUEPRINTS
Yuba Construction Company
Certificate of Articles of Incorporation - July 13, 1906
Map of the Wilcox, Leggett and Faul Tracts
B & C Dredging Company (Boston and California)
Showing progress of dredge, n.d.
(Internal evidence - after January 1904)
Yuba Consolidated Gold Fields
Proposed regulation of Yuba River and extension of dredging limits
Hammon Engineering Company
Accompanying letter to California Debris Commission - December 28, 1914
Bucyrus-Erie Company
General arrangement of 8 Cu.Ft. placer dredge, June 17, 1940