1812 – Born on February 22nd in in Hamilton County, Ohio. A Representative from Ohio and a Senator from California.
1833 – He was the prosecuting attorney of Butler County.
1839 – He was elected as a Democrat from Ohio to the Twenty-sixth, Twenty-seventh, and Twenty-eighth Congresses.
1846 – He served in the Mexican War.
1849 – A member of the commission to establish the boundary line between California and Mexico.
1851 – He moved to California and engaged in the practice of law; elected as a Democrat from California to the United States Senate for the term commencing March 4th.
1858 – He was the governor of California.
1860 – Appointed Minister to Mexico.
1875 – He died in New Orleans, Louisiana on August 17th.