During the American Civil War, he entered the Union Army in July 1862 as colonel of the 136th Pennsylvania Infantry.

He was elected as district attorney for Allegheny County, Pennsylvania in October 1870 and held the office until January 1, 1874.

He was renominated as a candidate for reelection to the Fifty-second Congress, but declined to accept the nomination, retiring from public life and active business pursuits.

[3] As a result of concerns about a lung hemorrhage, he shot himself dead, two days after his 58th birthday, in Washington, D.C. in 1894.

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