| William Thum | |
| Order: | 15th |
| Office: | Mayor of Pasadena |
| Term Start: | 1911 |
| Term End: | 1913 |
| Predecessor: | Thomas Earley |
| Successor: | Richard Lee Metcalf |
| Birth Date: | 21 December 1861 |
| Birth Place: | Michigan, US |
| Death Place: | Pasadena, California, US |
| Party: | Socialist Party of America Republican |
| Occupation: | Chemist, inventor, politician |
William Thum (December 21, 1861 – May 10, 1941) served as Mayor of Pasadena, California from 1911 to 1913.
On December 21, 1861, Thum was born in Michigan. Thum's parents were William Thum (1824-1883) and Christina (nee Greiner) Thum (1825-1907).[1]
Thum was a chemist. Thum was known for Tanglefoot, an adhesive fly-paper.[2]
In 1911, Thum became mayor of Pasadena, California, until 1913.[3]
During Thum's administration, Pasadena assumed control of the city's water system.[4]
Thum's wife is Margaret Thum. They have two children. On May 10, 1941, Thum died in Pasadena, California. Thum is buried at Hollywood Forever Cemetery in Los Angeles, California.[1] [5]