| Humboldt Arcata Reserve | Humboldt Times | MF 10 | 7/2/1950 | | | Land use | Arcata Humboldt Bay | Humboldt Arcata Reserve |
| Humboldt Bay & Eureka Railroad surveyors completed survey | Daily Times | MF 10 | 3/25/1883 | 3 | 2 | Survey | Eagle Prairie | Humboldt Bay & Eureka Railroad, Surveyors |
| Humboldt bay Aerial Survey | Humboldt Times | MF 10 | 4/18/1948 | 10 | 6 & 7 & 8 | Aerial Survey | Humboldt Bay | Aerial Survey, Humboldt Bay |
| Humboldt Bay Motor Boat Club found land for clubhouse | The Humboldt Times | MF 10 | 9/28/1907 | 1 | 3 & 4 | Land use | Grassy Glades | Humboldt Bay Motor Boat Club, Clubhouse, Grassy Glades |
| Humboldt Bay Woolen Mills | Humboldt Standard | MF 9 | 4/12/1917 | 1 | 3 | Woolen Mills | Humboldt Bay Eureka | Humboldt Bay Woolen Mills |
| Humboldt Brewing Company to build new steam brewery near new plant | The Humboldt Times | MF 10 | 11/1/1907 | 3 | 1 | New steam brewery | Eureka | Humboldt Brewing Company, Steam Brewery |
| Humboldt County BOS approved $7,500 for attorneys to fight diversion of water | Humboldt Times | MF 10 | 10/11/1922 | 8 | 3 | Approved funding | Eel River | Bos , J.F. Quinn, H.C. Nelson, Snow Mtn Water & Power Company |
| Humboldt County Fair | Humboldt Times | MF 10 | 8/14/1958 | 28 | | Aerial Photo | Ferndale Fairgrounds | Ferndale Fairgrounds, Humboldt County Fair, Aerial Photo |
| Humboldt County future water needs reviewed | The Humboldt Times | MF 10 | 6/23/1955 | 1 | 7 & 8 | Water needs | Humboldt County | Water Needs, Sen. Way, Fish Needs |
| Humboldt County is to official map | Daily Times Telephone | MF 10 | 2/19/1886 | 3 | 1 | Map | Humboldt county | Official Map, Mr. Stanley Forbes |
| Humboldt County officials cont. to react. to Gov. Warren's statement of support | Humboldt Times | MF 10 | 1/29/1953 | 1 | 4 & 5 | Actions | Trinity Humboldt County | Humboldt County, Trinity Diversion Project |
| Humboldt County PC approved changes | Humboldt Times | MF 10 | 9/6/1950 | 1 | | New building | 101 Indianola | Indianola, Maribel Drive-In Theater |
| Humboldt county PC approved maps | Humboldt Times | MF 10 | 5/4/1950 | 3 | | Land use | Sunny Brae Shelter cove | Sunny Brae, Shelter Cove |
| Humboldt County Place Names | Humboldt Times | MF 10 | 8/21/1949 | 4 | | Place Names | Dry Lagoon St. Park | Andy Genzoli, Humboldt County |
| Humboldt Grand Jury Report | Times Standard | MF 10 | 1/24/1958 | 1 | | "Notes from Martha's Clippings " | | Public Works, Grand Jury, Report |
| Humboldt Land & Title Company to hold open house | Humboldt Times | MF 10 | 7/14/1956 | 9 | 4 & 5 | Open House | 6th and I | Humboldt Land & Title Company, Open House, New Office |
| Humboldt Malt & Brewing Company opened reconstructed plant | Humboldt Times | MF 10 | 8/16/1933 | 3 | 4 & 5 & 6 | New Brewery plant | Eureka Fort Humboldt Humboldt Malt and Brewing company | Brewery, Fort Humboldt, Humboldt Malt & Brewing Company |
| Humboldt Milling Company has 1,600 cords of shingle bolts | The Humboldt Times | MF 10 | 10/29/1907 | 2 | 1 | Shingle numbers | | Shingle, Humboldt Milling Company, George Lone |
| Humboldt National Bank | Humboldt Times | MF 10 | 9/12/1917 | 5 | 1&2 | Bank | NW corner of 4th & E | Sketch, Bank, Building |
| Humboldt National Bank building | Humboldt Times | MF 10 | 9/23/1917 | 4 | | Ad | NW corner of 4th & E | Bank, Construction, Building, Newspaper Ad, Humboldt |
| Humboldt Pioneer Memorial | Humboldt Times | MF 10 | 8/26/1923 | 21 | | Memorial dedicated | | Zipparah Russ, Humboldt Pioneer Memorial |
| Humboldt Pioneer Society plans museum | Humboldt Times | MF 10 | 9/27/1933 | 5 | 2 | Museum | | Humboldt Pioneer Society, Museum |
| Humboldt state college funds for playground | Humboldt Times | MF 10 | 5/7/1950 | 25 | | Land use | Humboldt State College | Humboldt State College, Appropriation Of State Funds |
| Humboldt State received $710,000 for new buildings | Humboldt Times | MF 10 | 8/29/1948 | 2 | | New Buildings | Humboldt State | Humboldt State, New Buildings |
| Humboldt Steam Baths has new building | Humboldt Times | MF 10 | 6/21/1931 | 7 | | New building | | Humboldt Steam Baths, New Building |
| Hunting opened on Bliss Ranch on Sept. 21st | Humboldt Times | MF 10 | 9/8/1957 | 1 | 7 | Hunting opened | Bliss Ranch Mad River | Hunting Opened, Bliss Ranch, 900 Hunters |
| Huntington Mill of Honeydew | Humboldt Times | MF 10 | 11/26/1953 | 8 | | Mills | Honeydew | Mills, Honeydew, Fires |
| Hydroelectric plant | Evening Herald | | 1/24/1904 | 1 | 1 | Electricity, Hydro electric plant | Trinity River Bald Mountains | Hydroelectric Plant, Down, Road, Eureka Light Company |
| I. Minor's new mill complete & should be at work by March | Daily Times Telephone | MF 10 | 2/5/1886 | 2 | 1 | Saw Mills | Hall creek Mad River | I. Minors, John Vance'S |
| Illegal dumping on 8th between O&P in Eureka | Humboldt Times | MF 10 | 8/29/1951 | 13 | | Illegal Dumping | Eureka | Illegal Dumping |
| Immense tract of Timber Land Sold | Weely Humboldt Times | MF 10 | 5/22/1902 | 1 | | Land sale | Redwood creek | American Lumber Company, Redwood Creek, A.B. Hammond |
| Imperial 400 Motel opened today | Humboldt Times | MF 10 | 8/4/1963 | 22 | | New Hotel | | Imperial 400 Motel |
| Improve Whipple street as it only access to city dump | Humboldt Times | MF 10 | 7/21/1909 | 8 | 1 | Article | Eureka | Eureka, City Dump, Whipple Street |
| Improvement of Bald Hills Road | Humboldt Times | MF 10 | 8/4/1956 | 7 | | Road | Orick | Miles, Road, Improvement |
| Improvements being made to Vance railroad | Daily Humboldt Times | MF 10 | 9/11/1910 | 2 | 3 | Railroad work | Vance Essex | Vance Railroad, McClausky, Improvements |
| In 1850 James Van Duzen with L.K. Wood party, camped where Captain Wasgatt's house now stands | Blue Lake Advocate | MF 2191 | 6/3/1965 | 3 | 2, Susie Baker Fountain | Person | Hydesville | James Van Duzen, L.K. Wood Party, Captain Wasgatt House |
| In 1921 the city of Eureka purchased and took over management of the Humboldt Transit Co. | The Humboldt Times | MF 10 | 10/6/1946 | 4 | 4 | Historical News | Eureka | Transit, Railroad |
| In 1940 Arcata had a population equal to 1860. | The Humboldt Times | MF 10 | 11/13/1947 | 1 | 3 | Population | Arcata | Census, Population |
| In 1941 there were 24 lumber mills in Hum. Co. | The Humboldt Times | MF 10 | 9/14/1947 | 3 | 4 | History update | Humboldt County | Lumber, Companies |
| In Arcata, Street Supt. H. H. Howell started a crew of men to work today (8/13/14) grading down 14th st | Humboldt Times | MF 10 | 8/14/1914 | 3 | 7 | Street construction | Arcata | Bridge, Grading, Construction |
| Increase in channel depth in the South Bay | Humboldt Times | MF 10 | 8/20/1909 | 2 | 3 | increase in channel depth | South Bay Fields Landing | Fields Landing, Pacific Lumber Company, Fields Landing |
| Indian "Wike Lily" died | Weely Humboldt Times | MF 10 | 4/10/1902 | 4 | 3 | Death report | | "Wike Lily" |
| Indian Wars | Humboldt Times | MF 10 | 6/15/1952 | 5,8 | | History | | Indian Wars, Andy Genzoli |
| Indictments against Beach, Marks , Evans , King, Bell | Daily Humboldt Times | MF 10 | 5/4/1886 | 2 | 2 | Timber land frauds | | Timber Land Fraunds,, Judge Sabin |
| Info on gold mines | Humboldt Times | MF 10 | 10/22/1963 | 9 | | RFD by Genzoli | New River | Rfd, Gold Mines |
| Information on Claire Hill, Chairman of the California Water Resources Board | Humboldt Times | MF 10 | 1/12/1956 | 13 | | Water | | Chairman, Water, Resources, Study, Aerial, Photo |
| Information on Ramseyville | Humboldt Times | MF 10 | 11/16/1978 | | | Town | Ramsayville | Ramseyville, Cannery, Employment, Town, Floods |
| Information on the boat launcher in Trinidad | Humboldt Times | MF 10 | 7/4/1958 | 9 | | Industry | Trinidad | Boat, Launcher, Industry |
| Infrastructure | Arcata Union | MF 713 | 8/5/1903 | 3 | 3 | Water system | Arcata | Arcata Water System, Superintendent Falk |
| Infrastructure - General | Humboldt Times | MF 10 | 7/25/1939 | 5 | 3 | Oral History | Freshwater Park | Gillette, State Highway |
