| Trestle finished out to ship Corona | The Humboldt Times | MF 10 | 9/29/1907 | 1 | 6 - 7 | Ship stuck | | Trestle, Corona, Float Ship |
| Trestle on Samoa Beach | Blue Lake Advocate | MF 2191 | 2/24/1917 | 7 | 3 | Milwaukee shipwreck | Samoa beach Railroad spur Milwaukee shipwreck | Trestle, Shipwreck, Milwaukee, Mercer Fraser |
| Trestle out Corona taken out by wave action | Daily Humboldt Times | MF 10 | 1/23/1909 | 1 | 3 | Trestle damage | Corona | Trestle, Corona, Mattole Lumber Company |
| Triangle Rock & Gravel Company low bidders to place crashed on 299 | Humboldt Times | MF 10 | 9/17/1931 | 1 | 2 | Road work | Redwood Creek Willow Creek | Triangle Rock & Gravel Company, Section Surfaced, 299 |
| Tribute to Congressman Hubert Scudder | The Humboldt Times | MF 10 | 10/2/1958 | 1 | 1 & 2 | Tribute | Eureka Inn | Tribute, Hubert Scudder |
| Trinidad head set side for lighthouse | Weekly Humboldt Times | MF 10 | 11/13/1902 | 5 | 5 | Land use | Trinidad Head | Trinidad Head, Lighthouse, President Roosevelt |
| Trinidad Highway to done soon | Humboldt Times | MF 10 | 9/4/1912 | 1 | 5 | Road work | Trinidad | Trinidad Highway |
| Trinidad Memorial Lighthouse unveiled | Humboldt Times | MF 10 | 6/24/1949 | 9 | | Unveiled | Trinidad | Trinidad Memorial Lighthouse, Trinidad Civic Club |
| Trinidad Mining District | Humboldt Times | MF 10 | 8/24/1934 | 12 | 7 | Mining | Big Lagoon Spit Pacific Gold Placer Sunset Gold Placer Mining | Mining, Trinidad, Big Lagoon, Mining Locations |
| Trinidad whaling station | Humboldt Times | MF 10 | 8/3/1926 | 9 | | Whaling Station | Trinidad | Trinidad Whaling Station |
| Trinity area explored by Major Pearson B. Reading in 1849 | Humboldt Times | MF 10 | 11/22/1953 | 6 | | History | | Trinity, Major Pearson B. Reading |
| Trinity Dam Project | Humboldt Times | MF 10 | 6/28/1951 | 1 | | Dams | Trinity | Dams, Trinity County |
| Trinity Div. Project | Humboldt Times | MF 10 | 7/18/1952 | 2 | | Dams | | Trinity Div. Project |
| Trinity Diversion | Humboldt Times | MF 10 | 4/21/1954 | 1 | | Trinity | Trinity County | Trinity River |
| Trinity Diversion to be fought at Congressional Level | Humboldt Times | MF 10 | 4/15/1953 | 1 | 7 | Congressional debate | Trinity River | Trinity Diversion, Congressional |
| Trinity highway progress reported by H. Schultz | The Humboldt Times | MF 10 | 10/8/1911 | 1 | 4 | Report | South Fork Trinity Trinity Highway | Trinity Highway, Report |
| Trinity Hospital | Blue Lake Advocate | MF 2191 | 9/2/1965 | 8 | 3 | Hospital | Trinity | Trinity Hospital |
| Trinity River Bill killed by State Senate | Humboldt Times | MF 10 | 4/27/1949 | 1 | | Bill | Trinity River | Trinity River, Bill, Senate Water Resources Commission, Central Valley Authority Project |
| Trinity River dam | Humboldt Times | MF 10 | 8/21/1957 | 3,2 | | Article, Photos | Trinity River | Construction, Photos, Dam, Employment |
| Trinity River Project, Survey | Humboldt Times | MF 10 | 8/25/1955 | 1,16,23 | | Infrastructure | Trinity River Butler Valley | Trinity River Project, Butler Valley |
| Trinity River Reclamation project bill | Humboldt Times | MF 10 | 8/13/1955 | | | Water-Supply | Trinity River | Trinity River Reclamation Project Bill |
| Trinity River Water Sought For Diversion | Humboldt Times | MF 10 | 10/6/1922 | 8 | 2 | Water use | Trinity River | Trinity River, Applications, State Dept Of Public Works |
| Trinity Road To Be Opened Next Summer | Humboldt Times | MF 10 | 10/17/1922 | 10 | 4 | Road work | Trinity Barry's Ranch Willow Creek | Trinity Road, Willow Creek, Burnt Ranch |
| Trinity State Highway | Humboldt Times | MF 10 | 8/16/1934 | 3 | 5 | Infrastructure | Trinity State Highway Burnt Ranch | Highway 101, Road, Construction |
| Trip between Weaverville to Eureka takes 4 days | The Humboldt Times | MF 10 | 9/6/1907 | 5 | 4 | Travel | Weaverville Eureka | Trip, Horseback, Weaverville, Eureka |
| Trucks are oiling roads in Humboldt county | Humboldt Times | MF 10 | 6/17/1927 | 12 | 4 | Road work | Trinidad Orick Fernbridge | Trucks Oiling Roads |
| Twin Parks Lum. Co. under constr. between Alliance Rd and 101 will be ready for operation about May 1st | The Humboldt Times | MF 10 | 4/20/1947 | 6 | 1 | Construction update | Arcata | Construction, Lumber, |
| Two contracts for work on the RW Highway have been awarded during recent weeks. | The Humboldt Times | MF 10 | 2/25/1926 | 11 | 5 | Contracts | Klamath | Contracts, Highway, Grading |
| Two eastern capitalist have ownership 200 acre tract | The Daily Humboldt Times | MF 10 | 2/18/1908 | 3 | 2 | Land ownership | Gunther's Island | Eastern Capitalist, Trial Cultivation, Oysters |
| Two graves found under house at 3522 Dakota Street | Humboldt Times | MF 10 | 8/22/1962 | 10 | | Graves found | | Graves Found Under House |
| Two highway projects have been completed | Humboldt Times | MF 10 | 7/25/1956 | 16 | 4 | Projects works | Eureka Slough Camp 42 Lord - Ellis Summit | Highway Projects, Camp 42, Twin Bridge |
| Two men returned from hunting | The Humboldt Times | MF 10 | 6/7/1916 | 8 | 6 | Hunting | Fort Seward Blocksburg | Fort Seward, Hunting, Returned |
| Two miles of street will be paved | The Humboldt Times | MF 10 | 6/8/1916 | 1 | 3 | Paving work | Eureka | Paved, Bituminous Paving, Richmondite |
| Two new buildings in early stages of building on HSC | Humboldt Times | MF 10 | 9/23/1956 | 21 | 1 & 2 & 3 | Building work | HSC | New Buildings, Hsc |
| Two oblique aerials, of construction of Oregon Mtn. Highway Tunnel | Humboldt Times | MF 10 | 8/5/1961 | 11 | | Aerials | | Aerials, Photo, Oregon Mtn. Highway Tunnel |
| Two oblique photos of Courthouse & new Eureka City Hall | Humboldt Times | MF 10 | 7/29/1958 | 3 | | Oblique Photos | Eureka | Courthouse, Eureka City Hall |
| Two people getting married | Humboldt Times | MF 10 | 1/24/1953 | 5 | | Married | Garberville | Fred Hurlbutt, Patty Pittack |
| Two people killed on 101 | Humboldt Times | MF 10 | 8/17/1962 | 1 | | Death report | Rio Dell | Rio Dell, Paul E. Modgett & Richard Fleisher |
| Two people married in St. Bernards Church | The Humboldt Times | MF 10 | 6/22/1955 | 8 | | Married | St. Bernards Church | St. Bernards Church, Jerry S., Barbara |
| Two photos of 101 freeway at Dyerville | Humboldt Times | MF 10 | 9/29/1957 | 32 | 2 - 5 | Aerial Oblique | Dyerville | Photos, 101 Freeway, Dyerville |
| Two Photos of archaeologists in Trinidad | Humboldt Times | MF 10 | 8/18/1949 | 2 | 3 & 4 & 5 | Photos | Trinidad | Archoedogits, Trinidad |
| Two photos of fish interests | Humboldt Times | MF 10 | 10/28/1924 | 8 | 1 & 2 & 3 | Photos | Klamath | Salmon, Oppose, Klamath Water Power Project |
| Two photos of Holy Trinidad Church | The Humboldt Times | MF 10 | 6/5/1955 | 7 | | Photo | Trinidad Holy Trinidad Church | Photos, Holy Trinidad Church |
| Two photos of new section of 101 freeway | Humboldt Times | MF 10 | 10/27/1963 | 5 | | Photos | South Fork Eel Redcrest | Photos, New Section, 101 |
| Two photos showing loss of river bank | Humboldt Times | MF 10 | 1/29/1953 | 11 | | Photos | Mozzini Ranch | Photos, Mozzini Ranch, Thomsen Home |
| Two photos- one of destroyed bridge and one of ferry boat | Humboldt Times | MF 10 | 1/25/1948 | 1 | | Photos | Eel river | Holmes-Larrabee Bridge, Shively Bridge, Gillette Swan |
| Two units of Redwood Highway to be opened to traffic | Humboldt Times | MF 10 | 7/12/1934 | 3 | 5 | New Highway | Sausalito Waldo Cloverdale | Redwood Highway, Opened, 2 Units |
| U.S. Deputy Marshall arrived on steamer with certain documents | Daily Times Telephone | MF 10 | 4/9/1886 | 3 | 1 | Arrests | | U.S. Deputy Marshall Hopkins, |
| U.S. Engineering Corps will begin survey for Eel River Canal | Daily Humboldt Times | MF 10 | 6/19/1909 | 3 | 3 | Survey Work | South Bay Table Bluff | Survey, U.S. Engineering Corps, Eel River Canal |
| U.S. Govt deposited $15,000 into court | The Humboldt Times | MF 10 | 11/9/1907 | 3 | 1 & 2 | Deposit | | U.S.Govt, Deposited, Brown School Lot |
