| Camp Weott new homes, bungalows, cabins | Humboldt Times | MF 10 | 9/29/1926 | 7 | | New homes | | Camp Weott, Homes , Bungalows, Cabins |
| Camp Weott new homes, bungalows, cabins | Humboldt Times | MF 10 | 7/5/1888 | 3 | | Land use | Gill tract Eureka street | Eureka Street Railway, Schooner Lavra Pilce |
| Camping at Big Lagoon | Humboldt Times | MF 10 | 7/10/1927 | 16 | 2 | Camping | Big Lagoon | Camping |
| Cape Mendocino Light to be replaced | Humboldt Times | MF 10 | 12/2/1948 | 1 | | New Light | Cape Mendocino | Cape Mendocino Light, 12Th Coast Guard Region |
| Capt. Harry Smith said there once was Indian Reservation on site of govt. life saving station | Daily Humboldt Times | MF 10 | 6/16/1909 | 5 | 5 | Land use | North Spit Gov. life saving station | Capt. Harry Smith, Indian Reservation Camp, Gov. Life Saving Station |
| Capt. Pond & Frank Kelly inspected eroded banks along the Eel | Humboldt Times | MF 10 | 11/25/1937 | 1 | 7 | Inspection | Fernbridge Cock Robin Island | Inspected, Losses Of Soil, Eroded |
| Capt. Westdahl finish his survey | Weekly Humboldt Times | MF 10 | 4/12/1888 | 3 | | Survey | Eel River entrance | Eel River, Capt. Westdahl |
| Captain DeMerritt determined rock from Trinidad quarry to be used in beefing up jetties | The Humboldt Times | MF 10 | 9/15/1907 | 1 | 6 | Jetty work | Trinidad Bayside | Captain Demerritt, Trinidad Quarry, Bayside Quarry, Jetties |
| Captain DeMerritt finished surveying mouth of Humboldt Bay | The Humboldt Times | MF 10 | 9/11/1907 | 1 | 1 | Survey work | Bayside Carson Mill Trinidad | Captain Demerritt, Surveying, Mapped Data, Channel, Carson Mill |
| Car Ad | Humboldt Times | MF 10 | 6/22/1924 | 16 & 17 | | Ad | | Car Ad |
| Car Ad for Graham | Humboldt Times | MF 10 | 10/3/1937 | 3 | | Ad | | Car , Ad , Graham |
| Car Ads | Humboldt Times | MF 10 | 9/8/1912 | 10 & 11 | | Ads | | Car Ads, Prices Range |
| Car ads | The Humboldt Times | MF 10 | 2/7/1926 | 14 - 16, 22 | | Ad | | Ad, Cars, Prices |
| Car Ads | Humboldt Times | MF 10 | 8/11/1935 | 9 | | Ads | | Car Ad, Dodge, Hudson, Terraplane |
| Car Ads | Humboldt Times | MF 10 | 7/8/1927 | 7 | | Ads | | Car Ads, Prices Range |
| Car Ads | Humboldt Times | MF 10 | 4/6/1913 | 11 | | Ad | | Car Ads, Winton Six |
| Car Ads for Ford | The Humboldt Times | MF 10 | 6/4/1916 | 10 & 11 | | Ads | | Car Ads, Ford |
| Car ads. | Humboldt Times | MF 10 | 9/5/1915 | 10 | | Ad | | Car, Ad |
| Car ads. | Humboldt Times | MF 10 | 7/1/1917 | 10 | | Ad | | Ad, Haynes, Car |
| Car ads. | Humboldt Times | MF 10 | 7/1/1917 | 11 | | Ad | | Ad, Used, Car |
| Car numbers at Arcata Free Auto Camp | The Humboldt Standard | MF 9 | 7/8/1924 | 5 | 2 | Car numbers | Arcata | Arcata Free Auto Camp |
| Car price DeSoto, Studebaker | SF Examiner | | 2/17/1932 | 2:00 AM | | Car advertisement | | De Soto, Studebaker |
| Car price for Studebaker Londau | Humboldt Times | MF 10 | 3/11/1926 | 7 | | Price | | Studebaker, Londau |
| Car price of Overland six car | Humboldt Times | MF 10 | 3/7/1926 | 15 | | Price | | Car, Price, Overland |
| Car Prices | Humboldt Times | MF 10 | 4/25/1926 | 15 | | Prices | | Car, Prices, Pierce Arrow, Pontiac Six, Ford |
| Car prices for Chandler & Cleveland | Humboldt Times | MF 10 | 3/7/1926 | 17 | | Price | | Car, Chandler, Cleveland, Sedan |
| Car prices for De Soto & Chrysler | Humboldt Times | MF 10 | 10/20/1929 | 17 | | Prices | | Car Prices, De Soto, Chrysler |
| Car prices Roadster, Touring car | Humboldt Standard | MF 2191 | 8/19/1916 | 6 | | Car Advertisement | Eureka | |
| Car ran off road | Humboldt Times | MF 10 | 7/4/1958 | 3 | | Death | Mad River | Car, Accident, Road, Death, Driver, Drowning, Photo |
| Car sales ads | The Humboldt Times | MF 10 | 2/21/1926 | 16+17, 20 | | Ads | | Cars, Ads |
| Carlson Mill burned to the ground | Humboldt Times | MF 10 | 8/13/1958 | 1 | | Mill fire | Carlson Mill | Carlson Mill, Andrew V. Carlson |
| Cars ads for Nash, Chandler, Phaeton Reo | Humboldt Times | MF 10 | 11/4/1923 | 14 & 15 | | Car Ads | | Car Ads, Nash, Chandler, Phaeton Reo |
| Cars registered in County | Humboldt Times | MF 10 | 4/21/1929 | 21 | | Car numbers | Humboldt County | Cars, Registered |
| Carson Block building construction | Humboldt Standard | MF 9 | 3/21/1917 | 4 | 4 | Buildings | Eureka | Carson Block Building, Building Construction |
| causeway construction at Crescent City | Humboldt Times | MF 10 | 7/2/1950 | 5 | | Photos | Crescent City Sugarloaf Rock | Crescent City, Construction At Crescent City |
| Cease operations of the Mad River Quarry | Daily Humboldt Times | MF 10 | 6/1/1890 | 5 | | Industry | Mad River Seal Rock | Quarry, Operatons, Rock, Lighthouse |
| Cedar Flat bridge open | Humboldt Times | MF 10 | 6/3/1927 | 4 | 2 | New bridge | Trinity Highway | Cedar Flat Bridge, Trinity Highway |
| Celebration of Fernbridge opening set | The Humboldt Times | MF 10 | 10/25/1911 | 12 | | Celebration | Fernbridge | Fernbridge, Celebration, |
| Census Data | Weekly Times | MF 10 | 7/24/1880 | 1 | 3 | Census Data | Humboldt county | Census Data |
| Census Taking in Arcata | Humboldt Times | MF 10 | 5/22/1953 | 1 | 3 | Census Taking | Arcata | Arcata, Censu |
| Centennial for 1859 road from Crescent City will be Aug 23 | Humboldt Times | MF 10 | 7/26/1958 | 9 | 7 | Centennial | Crescent City Sailor's Digging's (Wanelo) | Centennial For Road, Wanelo |
| Centerville Beach county park dedicated | Humboldt Times | MF 10 | 10/18/1948 | 1 | 2,3 | County Park dedicated | | Centerville Beach County Park, Superv. George Lindley |
| Centerville Beach county park dedicated | Humboldt Times | MF 10 | 10/9/1949 | 4 | | Dedication | Centerville Beach county park | Centerville Beach County Park |
| Centerville Beach county park dedicated | Humboldt Times | MF 10 | 10/6/1949 | 7 | | Dedication | Centerville Beach county park | Centerville Beach County Park, Emil Mueller |
| Centerville dredging | Blue Lake Advocate | MF 2191 | 4/28/1917 | 4 | 3 | Dredging | Centerville Loleta | Dredging, |
| Central Valley Project Feasibility Study | Humboldt Times | MF 10 | 7/28/1934 | 1 | 5 | Feasibility Study | Central Valley Sacramento San Francisco Bay Delta | Feasibility, Central Valley Project, Senator Johnson, Representative Englebright, Flood, Salinity, Public Works Association* |
| Ceremonies for the groundbreaking for bridge construction | Humboldt Times | MF 10 | 7/12/1933 | 3 | 3 | Ground Breaking | Oakland S.F. | Ground Breaking, Bridge, Ceremonies |
| Ceremonies of placing the Navy-auxiliary airport at Dow's Prairie in commission tomorrow will not be open to the public due to the war's contingencies. | Humboldt Standard | MF 9 | 7/8/1943 | 1 | 5 | Ceremonies | Dow's Prairie | Ceremonies, Navy, Commission |
| Chairman authorized to execute certain Revocable Permit | Humboldt Times | MF 10 | 12/6/1950 | 17 | | Supervisors Proceeding | Humboldt County | Humboldt County, Chairman, Dept Of Navy, Permit |
| Chairmanship of State Highway Commission | Humboldt Times | MF 10 | 1/8/1927 | | | Chairmanship | | Ralph W. Bull, State Highway Commission |
