| Preparations of construction for Eureka Municipal Auditorium | Humboldt Times | MF 10 | 2/26/1936 | 3 | | New building | Eureka | Eureka Municipal Auditorium, Preparations To Begin Construction |
| Present Plans for grading work at Junior High School Site | Humboldt Times | MF 10 | 8/20/1963 | 1 | | Land Use | | "S" Street Junior High School, Grading |
| Presentation by Elsie Ricklefs of Hoopa | Humboldt Times | MF 10 | 10/23/1960 | 7 | | Presentation | | Hoopa, Legend, Presentation, Hchs |
| President Eisenhower signed "Tidelands" Bill | Humboldt Times | MF 10 | 5/23/1953 | 1 | 2 | Legal Notice | | Singed, Tidelands, President Eisenhower, Mineral Riches |
| President Eisenhower signed omnibus rivers & harbor bill yesterday | Humboldt Times | MF 10 | 7/4/1958 | 1 | 7 | Bill | Sandy Prairie | President Eisenhower, Omnibus Bill, Congressman Skudder |
| President signed proclamation making Oregon Cave National Monument | Humboldt Times | MF 10 | 8/5/1909 | 7 | 7 | Proclamation | Oregon Caves | Oregon Caves, National Monument, Elijah Davidson |
| President Skinner of C of C said construction of the new federal building will begin next spring | The Humboldt Times | MF 10 | 12/12/1907 | 1 | 1 & 2 | New Federal building | Eureka | President Skinner, Federal Building, Appropriated |
| Press release from Congressman Clem Miller supporting daming of Eel | The Humboldt Times | MF 10 | 10/14/1961 | 15 | 1 - 6 | Press release | Eel | Press Release, Congressman Clem Miller, Daming |
| Price for Ford | Humboldt Times | MF 10 | 9/27/1925 | 14 | | Price | | Price, Ford Runabout |
| Price of Chevrolet | Humboldt Times | MF 10 | 9/6/1925 | 15 | | Price | | Price, Chevrolet |
| Price of Ford Tudor sedan | Humboldt Times | MF 10 | 9/20/1925 | 20 | | Price | | Ford Tudor Sedan |
| Price of Jewett's Coach and Deluxe Sedan | Humboldt Times | MF 10 | 9/20/1925 | 19 | | Price | | Jewett Coach & Sedan |
| Price of Pierce Arrow | Humboldt Times | MF 10 | 9/6/1925 | 14 | | Price | | Price, Pierce Arrow |
| Price of Willys Knight car | Humboldt Times | MF 10 | 9/20/1925 | 18 | | Price | | Willys Knight Car |
| Priorities of improving 101 | Humboldt Times | MF 10 | 7/29/1925 | 3 | | Editorial | South end of Big Lagoon | Editorial, Improving 101, Big Lagoon South End |
| Problem for Humboldt County with Snow Mtn Water & Power Company | Humboldt Times | MF 10 | 9/1/1927 | 11 | | River use | Humboldt County | Senator Hans C. Nelsory, Snow Mtn Water & Power Company, Permit |
| Problem of people dumping garbage in alleys | Daily Times | MF 10 | 6/9/1883 | 3 | 2 | Article | | Garbage Dumping |
| Problems with Arcata to Soma road | Humboldt Times | MF 10 | 10/18/1928 | 2 | | Article | Arcata Soma | Road Problems, Arcata To Soma |
| Problems with quality construction | Humboldt Times | MF 10 | 7/23/1926 | 1 | | Road work | Klamath | Douglas Memorial Bridge, Quality Problems |
| Proceeding of B.O.S. | Daily Humboldt Standard | MF 9 | 1/16/1896 | 1 | 2 | Proceedings | Salt River | Bridge, Salt River |
| Proceedings of the B.O.S. meeting on May 11th | Daily Times | MF 10 | 5/12/1883 | 3 | 2 | B.O.S proceedings | | B.O.S Proceedings, Clerk'S Office, Courthouse |
| Proceedings on building a bridge across Bear Canyon | Daily Humboldt Times | MF 10 | 4/16/1890 | 3 | | Proceeding | Garberville Bear Canyon | Proceeding, Bear Canyon, Bridge, Plans, Specs, Completion, Bids |
| Proceedings on road bonds | The Humboldt Times | MF 10 | 8/3/1916 | 2 & 5 | | Supervisors Proceedings | Humboldt County | Supervisors Proceedings, Road Bonds, |
| Proceedings paying Winston Garcelon for his construction work | Humboldt Times | MF 10 | 8/4/1956 | 7 | | Proceeding | Freshwater Pool | Proceeding, Funds, Payment, Diving, Platform |
| Proclamation by President adding to Trinity National Forest | The Daily Humboldt Times | MF 10 | 2/19/1908 | 4 | 3 | Legal Notice | Trinity National Forest | Proclamation, President, Additional, Trinity National Forest |
| Prof. Emanuel Fritz is against setting backfires | Humboldt Times | MF 10 | 9/19/1937 | 3 | 1 | Fire use | | Back Fires, Against, Emanvel Fritz |
| Prof. Goddard of U.C.B. in Mattole Valley gathering info on Indians | The Humboldt Times | MF 10 | 10/20/1907 | 12 | | Travel | Mattole Valley | Prof. Goddard, U.C.B., Jos. Duncan, Mattole Indian |
| Professional Photographers of the RW Region formed | Humboldt Times | MF 10 | 9/8/1963 | 9 | | New Group | | Professional, Photographers, Redwood Region |
| Progress being made on Mad River dam & 26 mile pipeline | Humboldt Times | MF 10 | 7/29/1938 | 3 | 3 | Dam work | Mad River | Mad River Dam |
| Progress of constructing Eel River & Eureka Railroad | Daily Times | MF 10 | 6/23/1883 | 3 | 2 | Article | | Railroad, Progress |
| Progress of constructing Humboldt Bay & Eel railroad | Daily Times | MF 10 | 5/25/1883 | 3 | 2 | Article | McDonald's Ferry Van Duzen River | Humboldt Bay & Eel River Railroad, Mcdonald'S Ferry |
| Progress of constructing new sewer systems | Weely Humboldt Times | MF 10 | 7/17/1902 | 2 | 5 | Article | | New Sewer System |
| Progress report on construction of rr | Humboldt Times | MF 10 | 9/22/1912 | 1 | 1 & 2 | Railroad work | Island Mountain Tunnel | Construction, Island Mountain Tunnel |
| Progress report on the construction of the Douglas Memorial Bridge over the Klamath. | Humboldt Times | MF 10 | 5/8/1925 | 8 | 2 | Progress Report | | Bridge, Construction, Memorial |
| Project delay on rip rap for Eel River | The Humboldt Times | MF 10 | 10/22/1907 | 4 | 4 | Project delay | Eel River | Eel River, Rip Rap, Delay |
| Projects under construction in Humboldt County by State Highways | Humboldt Times | MF 10 | 7/25/1956 | 3 | 4 | Projects works | Loleta Bypass Hoopa Turner Draw Bridge | Projects, Construction, Humboldt County |
| Promotional ad for Pulp Mills | Humboldt Times | MF 10 | 9/14/1956 | 16 | | Promotional Ad | Humboldt County | Promotional Ad, Pulp Mills, Pollute |
| Promotional on importance of water dev. | Humboldt Times | MF 10 | 9/9/1956 | 32 | | Promotional | Humboldt County | Promotional, Water Importance |
| Proof of labor by C.W. Hill near Little River | Morning Daily Humboldt Times | MF 10 | 6/29/1910 | 7 | 7 | Labor | Little River | Labor, C.W. Hill, Mining |
| Property owners successfully protested grading of Whipple Street | Humboldt Times | MF 10 | 10/20/1909 | 5 | 1 | Road work | Whipple Street | Whipple Street, Property Owners |
| Property owners wanting the street extended | The Humboldt Times | MF 10 | 9/4/1907 | 5 | 3 | Street work | Eureka 5th street | Property Owners, Extension, 5Th Street |
| Proposal by State to take 2.1 million acres of RW land | Humboldt Times | MF 10 | 5/14/1949 | 1 | | Proposal | Sonoma County Mendocino County Humboldt County | Proposal, State, Redwood |
| Proposal to state and forest service for scenic highway | The Humboldt Times | MF 10 | 10/16/1932 | 10 | 2 | Proposal | Yreka Klamath | Proposal, Scenic Highway, |
| Proposed county road map | Humboldt Standard | MF 9 | 6/20/1916 | 3 | | Road map | Humboldt County | Roads, Humboldt County |
| Proposed dedication of new Centerville Beach county park | Humboldt Times | MF 10 | 10/16/1949 | 1 | 4,5 | Article | Centerville beach county park | Centerville Beach County Park, Proposed Dedication |
| Proposed Eel River Levee System has strong support from ranchers & dairymen | Humboldt Times | MF 10 | 10/6/1963 | 5 | 2 - 8 | Flood control | Eel River | Proposed, Levee, Flood Control, Eel River |
| Proposed extension of the Eureka & Freshwater Railway company track | Weely Humboldt Times | MF 10 | 1/2/1902 | 2 | 6,7 | Long Article | Eureka Slough | Eureka Slough, Eureka & Freshwater Railway Company, Calif & Northern Railway Company |
| Proposed Route of 101 | Humboldt Times | MF 10 | 6/10/1954 | 3 | | Infrastructure- Roads | Patricks Point Big Lagoon BL Marsh | Route 101, Patrick'S Point State Park, Big Lagoon, Hammond Lumber Company, Big Lagoon Marsh |
| Provisions of new timber long bill | Daily Humboldt Times | MF 10 | 8/2/1878 | 3 | 1 | New Bill | | Timber Long Bill |
| Public Hearing for a Proposed reservoir | Humboldt Times | MF 10 | 8/30/1923 | 1 | | Public Hearing | | Proposal, Hearing, Reservoir, Tunnels, River |
