J.P.M. Davis (?? - 1864) was the 6th Mayor of Oakland, California and began his term on March 7, 1860.
He was chief of police from 1855-1859. This was an elected position at the time, then called "marshal," and he served just one term, after which he was elected Mayor.1
Davis is buried in Mountain View Cemetery.
- McArdle, Phil. Oakland Police Department. Arcadia Publishing: 2007.