| Letter write by Col. John Riddle to George Kellagg | Humboldt Times | MF 10 | 10/21/1909 | 1 | 5 | Letter | Eel RIver Canal Humboldt Bay | Letter, Col. John Riddle, George Kellogg |
| Letters have been received by cities and local sanitation districts from the state Dept. of Health notifying them of violations of state law | The Humboldt Times | MF 10 | 2/22/1947 | 1 | 7+8 | Violations | Humboldt Bay | Sanitation, Violation |
| leveling site in Manila for site of Copper smelter plant | Humboldt Times | MF 10 | 8/7/1958 | 1 | 7 | Land use | Manila | Manila, Copper Smelter Plant, Dr. C. Charles Celestri |
| Lewis H. Hess build removed | Humboldt Times | MF 10 | 7/9/1958 | 12 | | Infrastructure-removed | Eureka | Building, History, Removal, Sale |
| licenses granted for ferries | Weekly Times | MF 10 | 1/3/1880 | 3 | | BOS proceedings | Eagle Prairie | Ferries, Gec. H. Singley, J.H. Dungan, Oscar Lindley |
| Life history of Charles R. Barnum | Humboldt Times | MF 10 | 3/12/1953 | 1 | | Life history | | Charles R. Barnum, Calif. Forest Practices Comm., Hch Society |
| Life history of Mrs. Zipporah Russ | Humboldt Times | MF 10 | 11/12/1929 | 10 | | Life history | Fern Cottage | Mrs. Zipporah Russ |
| Life of Charles Mulberg | Humboldt Times | MF 10 | 4/6/1928 | 7 | | Obituary | Arcata | Indian Island Massacre, Charles Mulberg |
| Life of Hans Buhne | Humboldt Times | MF 10 | 7/21/1961 | 15 | | RFD by Genzoli | | Rfd, Andy G. |
| Light in Trinidad Lighthouse switched | Humboldt Times | MF 10 | 1/25/1948 | 3 | | Trinidad Lighthouse | Trinidad | Trinidad Lighthouse |
| Light Six, The Allen Classic | Humboldt Times | MF 10 | 7/1/1917 | 10 | | Vehicle | | Cars, Roadster, Newspaper Ad |
| Lighthouses | Humboldt Times | MF 10 | 8/6/1939 | 1, 1 | 1, 2 | Nineteenth Century | Humboldt County - Various | Nineteenth Century, Lighthouses |
| Lighthouses | Humboldt Times | MF 10 | 8/6/1939 | 1, 1 | 1, 2 | Nineteenth Century | Humboldt County - Various | Nineteenth Century, Lighthouses |
| Limestone Caves | Humboldt Times | MF 10 | 5/18/1952 | 10 | | Full page | Del Lama | Del Lama, Limestone Caves |
| Lincoln Mill company using ballast from coasting vessels fill up property | Daily Times Telephone | MF 10 | 2/26/1886 | 3 | 1 | Land use | | Lincoln Mill Company , Ballast |
| Lincoln School under construction, build sewer across Harris | Humboldt Times | MF 10 | 7/21/1909 | 5 | 4 | New school & sewer | Albee street Harris street | Lincoln School, Sewer |
| Line of the Times on a new Wagon Road | Humboldt Times | MF 10 | 7/20/1958 | 6 | | History | Ft. Gaston | History, Wagon, Road, Construction |
| Lines of the Time for Nov. 5, 1881 | The Humboldt Times | MF 10 | 10/29/1961 | 10 | 5 | Series | Eureka Table Bluff | Road Condition, Elliot, E.J. Dressler |
| Lines of the Times | The Humboldt Times | MF 10 | 10/26/1958 | 17 | | Series | Arcata Big Lagoon | William Vance, Sand Mining, Machine |
| Lines of the Times | Humboldt Times | MF 10 | 1/11/1951 | 6 | | Newspaper | Little River | Lines Of The Times, Removing Gold |
| Lines of the Times by Andy Genzoli | Humboldt Times | MF 10 | 5/11/1952 | 5 | | Article | | Andy G., Steamer Martin White |
| Lines of the Times, Week of Aug. 14, 1913 L.L. Loud of UCB came to Blue Lake | Humboldt Times | MF 10 | 8/4/1963 | 11 | | Article | Blue Lake | L.L. Loud, Ucb, Lines Of The Times, Mad River Indians |
| Lines of the Times- April 14, 1855 | Humboldt Times | MF 10 | 4/13/1952 | 3 | | Article | | Earthquake, Lines Of The Times, Genzoli, Wharf |
| Lines of the Times: 1854 | Humboldt Times | MF 10 | 9/15/1963 | 15 | 2 | Series | Adams House Bucksport | Lines Of The Times, Mary & Brothers |
| Lines of the Times: Week of 8/19/1882 | Humboldt Times | MF 10 | 8/13/1961 | 7 | | Series | | Water Well, C.S. Ricks |
| List of acres of Redwood preserved since January 1929 | Humboldt Times | MF 10 | 5/10/1929 | 1 - 4 | 6 | List | Nelson Grove Harris Whittemore Grove Stout Grove | List, Redwood Acres Preserved Since January 1929 |
| List of New businesses | Humboldt Times | MF 10 | 6/2/1950 | 5 | | List | Arcata | Arcata, New Businesses |
| List of people registered | Humboldt Times | MF 10 | 9/5/1912 | 3 | 4 | List | Big Lagoon | Big Lagoon Inn |
| List of post offices in Humboldt county | Daily Humboldt Times | MF 10 | 1/16/1878 | 3 | 1 | List | Humboldt County Myrtle Grove | List, Post Offices, Myrtle Grove |
| List of RW Groves donated by citizens | Humboldt Times | MF 10 | 5/27/1953 | 3 | 4 | List | Humboldt County | Rw Groves, Donated, Citizen Memory |
| List of ships built | Daily Times Telephone | MF 10 | 4/7/1886 | 3 | 2 | List | Humboldt Bay | Ships Built |
| List of vessels constructed on Humboldt Bay | Weekly Times | MF 10 | 4/17/1880 | 3 | 2 | Ship built | Humboldt Bay | Humboldt Bay, Vessels Constructed |
| Little cottage is to be taken down for space to put in modern business | The Humboldt Times | MF 10 | 10/21/1911 | 1 | 6 | Land Use | Eureka | Cottage, Oldest Landmark, Mr. J.E. Barnard |
| little from power if river diverted | Humboldt Times | MF 10 | 9/27/1952 | 1 | | Rivers | | Armon Heffington, Little Benefit |
| Little River Beach State Park management by State Beaches & Park | Humboldt Times | MF 10 | 8/29/1962 | 11 | | Management | Little River Beach State Park Azalea State Park | Management, Little River Beach State Park |
| Little River been put back in original channel | Humboldt Times | MF 10 | 5/1/1931 | 3 | | River work | Little River Crannell Moonstone Beach | Little River, Original Channel |
| Little River Bridge, Bull Creek Rd. | Humboldt Standard | MF 9 | 12/14/1916 | 1 | 2 | Bridge, County Roads | Little River Shelter Cove Mattole | Redwood Highway., Bull Creek, Ettersberg, Little River |
| Little River Company to give county 50 acres tract At Big Lagoon | Humboldt Times | MF 10 | 4/20/1929 | 1 | 2 | Land ownership | Big Lagoon | Big Lagoon, Little River Company |
| Little River Redwood Company & Hammond Lumber Company transferred deeds | Humboldt Times | MF 10 | 7/22/1931 | 3 | | Land Use | | Deeds Transferred, Hammond Lumber Company, Little River Redwood Company |
| Little Van Duzen bridge | Western Watchmen | | 12 /18/1997 | 3 | 2 | Notes from old newspaper from Jacque Smith rec'd 12-9-2010 | Little Van Dusen River | Bridge, Contract. |
| Live telecast began at 6:30PM | Humboldt Times | MF 10 | 10/25/1953 | 1 | | TV Stations/Broadcasting | Eureka | Broadcasting, Tv Stations |
| Loan and grant funding sent side for Mad River Water Project by U.S. Sec. Ickes | Humboldt Times | MF 10 | 7/1/1934 | 1 | 1 | Funding | Eureka | Sec. Ickes, Mad River Water Project, Obligation Bond |
| Local educators say junior college in future | Humboldt Times | MF 10 | 7/11/1961 | 1 | 5 | Future School | | Educators, Predict, Junior College |
| Local Hearing by State Water Board on most recent State Water Plan | Humboldt Times | MF 10 | 7/28/1956 | 1 | 6 | Hearing | | Local Hearing, State Water Plan, Bulletin |
| Located proposed bridge over Salt river | Daily Humboldt Times | MF 10 | 5/2/1886 | 3 | 3 | Bridge site | Salt river | Bridge, Salt River, Messrs. J.W. Henderson, James Simpson, Shaw |
| Log Cabin Motor Inn sold | Humboldt Times | MF 10 | 10/4/1935 | 3 | 2 | Inn Sold | Log Cabin Motor | Log Cabin Motor |
| Logging firmr of Razor & Sons, Inc. paid DFG $4,000 for polluting Rocky Gulch Creek | Humboldt Times | MF 10 | 8/25/1962 | 1 | | Land Damaged Paid | Rocky Gulch Creek | Rocky Gulch Creek, Polluting, Razor & Sons Inc. |
| Logging Freshwater | Daily Humboldt Times | MF 10 | 8/1/1880 | | | Logging | Freshwater Slough | Freshwater Slough, Logging |
| Logging of Upper Bear River | Humboldt Times | MF 10 | 9/27/1953 | | | Land use | Upper Bear River | Logging, Morrison Ranch, Upper Bear River |
| Logging Road Access | Humboldt Times | MF 10 | 7/21/1956 | 1 | 5 | Road | Prairie Creek State Park | Logging, Prairie Creek, Twin Parks Lumber Company, Reddiscraft Lumber Company |
