1878, May 12 – Herman Lehmann, escorted by soldiers, finally returns to his family.[12]
1880s Manganese is discovered. Wakefield Company opens Spiller mines. Iron ore is discovered. Prospecting begins for gold, silver and coal.[20]
1882–83 Hereford cattle are introduced into the county.[21] Provisions made for county wide road work.
1887 The county petitions for state aid for needy residents.
1890s County places a bounty on wolves, wildcats and mountain lions.[citation needed]
1902 Mason installs its first telephone in the county judge's office.
1918 October 3 – Eighteen months after United States Congress declares war on Germany, the Mason County Council of Defense draws up resolution to abandon the use of the German language in the county. The majority of County residents are of German heritage.[3]
1919 First oil and gas lease in the county. Construction begins on the Mason County section of the Puget Sound-to-the-Gulf Highway.
According to the U.S. Census Bureau, the county has a total area of 932 square miles (2,410 km2), of which 929 square miles (2,410 km2) is land and 3.4 square miles (8.8 km2) (0.4%) is water.[23]
Mason County, Texas – Racial and ethnic composition Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.
At the 2000 census,[29] there were 3,738 people, 1,607 households and 1,110 families residing in the county. The population density was 4 people per square mile (1.5 people/km2). There were 2,372 housing units at an average density of 2 units per square mile (0.77/km2). The racial makeup of the county was 91.60% White, 0.13% Black or African American, 0.62% Native American, 0.05% Asian, 0.03% Pacific Islander, 5.75% from other races, and 1.82% from two or more races. 20.95% of the population were Hispanic or Latino of any race.
There were 1,607 households, of which 25.90% had children under the age of 18 living with them, 59.10% were married couples living together, 7.70% had a female householder with no husband present, and 30.90% were non-families. 29.20% of all households were made up of individuals, and 17.90% had someone living alone who was 65 years of age or older. The average household size was 2.31 and the average family size was 2.83.
22.40% of the population were under the age of 18, 4.70% from 18 to 24, 20.70% from 25 to 44, 28.80% from 45 to 64, and 23.50% who were 65 years of age or older. The median age was 47 years. For every 100 females there were 92.40 males. For every 100 females age 18 and over, there were 87.60 males.
The median household income was $30,921 and the median family income was $39,360. Males had a median income of $28,125 compared with $20,000 for females. The per capita income was $20,931. About 10.10% of families and 13.20% of the population were below the poverty line, including 20.50% of those under age 18 and 13.30% of those age 65 or over.
^Hudspeth, Brewster. "The Savage Life Of Herman Lehmann". Texas Escapes – Blueprints For Travel, LLC. Retrieved November 27, 2010. Texas Escapes – Blueprints For Travel, LLC.
^Johnson, David; Miller, Rick (2009). The Mason County ""Hoo Doo"" War, 1874–1902 (A.C. Greene Series). University of North Texas Press. ISBN978-1-57441-262-8.
^Johnson, David; Parsons, Chuck (2008). John Ringo, King of the Cowboys: His Life and Times from the Hoo Doo War to Tombstone, Second Edition (A. C. Greene). University of North Texas Press. ISBN978-1-57441-243-7.