| 90 blocks of pavement laid in Eureka | Humboldt Times | MF 10 | 9/26/1925 | 1 | 6 | Road work | Eureka | 90 Blocks, Asphaltic Concrete, Eureka |
| 96 widening of highway to done this week | The Humboldt Times | MF 10 | 10/28/1955 | 11 | 6 | Freeway work | | 96, Widening, Highway |
| A $300,000 fish processing plant will be built at 2nd and A. | The Humboldt Times | MF 10 | 9/7/1945 | 3 | 2 | Construction plans | Arcata | Fish, Plant, Construction |
| A 3rd rail has been added to the narrow gauge track of the A + 19 RRR from Korbel to the old Green Place now owned by Thomas Lattin, near james Crk, to a point where the A+19 RRR joins the NWP RR. | Humboldt Times | MF 10 | 6/23/1925 | 5 | 3 | Railroad construction report | | Railroad |
| A 6 yr. dream will be realized tomorrow at 11:13 AM | The Humboldt Times | MF 10 | 12/8/1946 | 1 | 7+8 | Notice | Eureka | Airport, Historical |
| A big forest fire raged out of control north of Trinidad | The Humboldt Times | MF 10 | 9/29/1945 | 1 | 7 | Fire | Abalone Beach | Fire |
| A comprehensive zoning ordinance for Hum. Co. as been prepared by Hahn, Campbell and Assoc. | The Humboldt Times | MF 10 | 2/21/1947 | 1 | 5 | Ordinances | Humboldt | Zoning, Ordinance |
| A contract was awarded to low bidder Chigras and Sutsos of S.F. for grading and surfacing w/ untreated gravel or stone at High Rock hill. | The Humboldt Times | MF 10 | 10/16/1930 | 1 | 4 | Contract | Dyerville | Contract, Grading, Rw Highway |
| A crab cannery plant will be built. | Humboldt Times | MF 10 | 8/15/1942 | 1 | 5 | Factory construction | Oregon | Crab, Cannery, Plant |
| A giant air show will occur today at the Eureka Airport at Samoa. | The Humboldt Times | MF 10 | 5/4/1947 | 1 | 3 | Airplanes | Eureka Samoa | Air Show, Plane, Airport |
| A good description of 299 from Eureka to Redding. | The Humboldt Standard | MF 9 | 10/12/1945 | 2 | 6 | Highway | Eureka Redding Blue Lake | Driving, Miles, 299, Highway |
| A Good Roads congress will convene in S.F. for 5 days beginning tomorrow. | Humboldt Times | MF 10 | 9/12/1915 | 11 | 7 | Roads congress | San Francisco | Road, Meeting, Congress, Discussion |
| A grand celebration was held on Highway 199 | Humboldt Times | MF 10 | 5/12/1925 | 11 | 5 | Celebration | | Construction, Highway, Celebration |
| A group of Crannel folks spent Sunday (June 28) at Big Lagoon | Humboldt Times | MF 10 | 7/3/1925 | 6 | 4 | | Big Lagoon | Crannel, Big Lagoon |
| A group of realtors have formed a multiple listing service. | The Humboldt Times | MF 10 | 1/24/1947 | 1 | 7 | Industry | | Realtors, Listings, Housing |
| A group of residents from the College Hill district in Arcata appeared before the city council last night demanding immediate action to solve the acute sewage problem. | The Humboldt Times | MF 10 | 4/6/1947 | 1 | 6 | Sewage | Arcata | Action, Sewer, Plans |
| A hearing on a Klamath Dam to regulate flow has been set for Feb. 23rd. | The Humboldt Times | MF 10 | 2/13/1947 | 2 | | Hearing | Klamath dam | Hearing, Dam |
| A jury trial is under way on the case of the U.S. against 237.51 ac. in federal court. | Humboldt Standard | MF 9 | 7/20/1943 | 1 | 8 | Trial update | | Jury, Trial, Federal Court |
| A large 300' x 50' greenhouse is under constr. of Cottage Garden at the Eden Tract east of Eureka. | Humboldt Times | MF 10 | 9/1/1915 | 1 | 5 | Construction | Eureka | Greenhouse, Construction |
| A large 7 1/2' x 14 1/2' relief map by J.N. Lentell will be on display at the Eureka Dev. Assoc. at 319 G. St. | Humboldt Times | MF 10 | 8/23/1914 | 1 | 2 | Event | Eureka | Map, Display |
| A large field has been secured as a landing field. | The Humboldt Times | MF 10 | 10/19/1919 | 14 | 1 | Land use | Dows Prairie | Airport, Aero, Field |
| A large number of acres added to Trinity National Forest | The Humboldt Times | MF 10 | 11/17/1907 | 2 | 3 | Land Transfer | Trinity National Forest | Acres Added, Trinity National Forest |
| A large-scale advertising program to boost traffic on 299 was announced | The Humboldt Times | MF 10 | 12/14/1947 | 1 | 4+5 | Announcement | Arcata Redding | Advertising, Pamphlet, Traffic, 299 |
| A new $30,000 isolation bldg. on the hospital grounds has been completed and officially opened yesterday. | Humboldt Times | MF 10 | 6/12/1925 | 5 | 5 | Construction update | | Construction, Hospital |
| A new 195 page industrial survey report on future possible developments on Hum. Bay has been completed. | The Humboldt Times | MF 10 | 5/7/1947 | 1 | 3 | Site survey | Humboldt Bay | Survey, Industrial, Developments, Site |
| A new bridge is to be built over the Mattole River | Humboldt Times | MF 10 | 5/23/1925 | 10 | 5 | Construction update | | River, Bridge, Construction |
| A new city planned at Alder Point site | Daily Humboldt Times | MF 10 | 11/17/1909 | 1 | 1 | New city | Alder Point | New City, Planned, |
| A new garage with accommodations for 5 machines will be constr. | Humboldt Times | MF 10 | 8/15/1914 | 3 | 4 | Garage | Fernbridge | Garage, Resort, Cars |
| A new national forest was formed. | The Humboldt Times | MF 10 | 10/31/1946 | 1 | 3 | forest | Siskiyou Klamath Trinity | National Forest |
| A new pamphlet has been printed. | The Humboldt Times | MF 10 | 9/7/1947 | 3 | 6 | Notice | | Pamphlet, Industries |
| A new service station will open at 4th and I | Humboldt Times | MF 10 | 3/2/1929 | 3 | 3 | Announcement | Arcata | Service Station |
| A new tallow factory will be constructed. | The Humboldt Times | MF 10 | 1/27/1929 | 12 | 1 | Construction | Eureka | Factory, Construction |
| A Regatta Will Be Held on Big Lagoon on Sunday Aug 5. | Humboldt Times | MF 10 | 8/2/1934 | 8 | 1 | Event | Big Lagoon | Regatta, Big Lagoon, Races |
| A short History of the Eureka street Car System has been reported by Miss Helen G. Wood of the State Normal School in Arcata. | Humboldt Times | MF 10 | 9/19/1915 | 12 | 3 | History | Eureka | Streetcar System, History, Cars |
| A special 32 page KRED insert | The Humboldt Times | MF 10 | 5/6/1948 | 12 | | Industry | Humboldt County | Radio |
| A survey in the Arcata area found over 30 lumbering operations making Arcata one of the boom towns in the country. | The Humboldt Times | MF 10 | 2/2/1947 | 5 | 4 | Article | Arcata | Survey, Boom, Lumber |
| A temp. restraining order was granted against Hammond Lumber Co. to prevent the company from digging a trench | The Humboldt Times | MF 10 | 5/22/1947 | 1 | 7+8 | Construction | Big Lagoon | Restraining Order, Trench, Company, Lumber, Industry |
| A+ MR RR let contract for across Mad River | Weekly Humboldt Times | MF 10 | 1/26/1888 | 3 | | New Bridge | Mad River | A+ Mr Rr, San Francisco Bridge Company |
| A.B. Sanders passed through town | Weekly Humboldt Times | MF 10 | 12/18/1902 | 2 | 3 | Person going through town | Eureka Big Lagoon | Eureka, Big Lagoon, A.B. Sanders |
| A.D. Edmonston talks about bringing water south from Eel & Russian River | Humboldt Times | MF 10 | 9/19/1950 | 1 | | River management | Eel River Russian River | A.D. Edmonston, Eel & Russian River |
| A.H Murdock & George Tilley ran omnibus | Blue Lake Advocate | MF 2191 | 4/8/1965 | 3 | Susie Baker Fountain | Omnibus | | A.H. Murdock, George Tilley , Omnibus |
| A.J. Logan & assistant Jack Bowden surveying route | The Humboldt Times | MF 10 | 6/26/1916 | 3 | 4 | Surveying work | Upper Mattole Bull Creek | Surveying, Road Route, A.J. Logan, Jack Bowden |
| A.P. Plughoff did record time in Rio auto from S.F. to Eureka | The Humboldt Times | MF 10 | 10/23/1907 | 4 | 6 | Travel time | S.F. Eureka | A.P. Plughoff, Record Time, Rio Auto |
| A.W. Erickson in town | Daily Times | MF 10 | 5/10/1883 | 3 | 2 | Person | Trinidad | A.W. Erickson, Trinidad |
| About 1000 people watched the boat races. | Humboldt Times | MF 10 | 8/7/1934 | 8 | 2 | Event report | Big Lagoon | Big Lagoon, Boat Races |
| About 200 commercial Fisherman at this time | Humboldt Times | MF 10 | 7/13/1927 | 1 | 4 | Commercial Fisherman number | | Commercial Fisherman |
| About 500 farmers & guests attended annual Farmer's Picnic | Daily Humboldt Times | MF 10 | 6/18/1909 | 5 | 6 | Attendees Number | Hiller's Grove | Farmers, Arcata Bottom, Annual Farmers Picnic |
| About Trinidad Head and Lighthouse keepers | Humboldt Times | MF 10 | 1/28/1951 | 10 | | Photos and Article | Trinidad | Photos, Trinidad Head, Lighthouse |
| Acceptance of bid for the construction of a county road | Humboldt Times | MF 10 | 6/14/1923 | 3 | | Construction | Redway Briceland | Bid, Constrcution, Road, Acceptance |
| Accepted bid for supplying 600 gallon road oiler | Humboldt Times | MF 10 | 7/6/1922 | 1 | 6 | Land Use | Eureka | Eureka City Council, Accepted Bid, Austin Western Road Machinery Company |
