Lorenzo Brentano

Life in America He established Der Leuchtturm, a German anti-slavery journal, in Pottsville, Pennsylvania. He settled in Kalamazoo County, Michigan, and engaged in agricultural pursuits. He moved to Chicago, Illinois, in 1859. He was admitted to the bar in 1859 and commenced practice in Chicago. He became editor-in-chief and principal proprietor of the Illinois Staats-Zeitung from 1862 to 1867. The paper was sold in 1867, and Hermann Raster took over Brentano's position as editor. He served as member of the Illinois House of Representatives in 1862, as a member of the Chicago Board of Education 1862–1868 (serving as its president in 1867 and 1868), and as a delegate to the 1864 Republican National Convention. In 1868 he was presidential elector on the Grant and Colfax ticket.

In 1869, a general amnesty having been granted to the revolutionists of 1849, he revisited his native land. He was appointed United States consul at Dresden in 1872 and served until April 1876. Brentano's son Theodore would become the first American ambassador to Hungary.

Brentano was elected as a Republican to the Forty-fifth Congress (March 4, 1877 – March 3, 1879). He was an unsuccessful candidate for renomination in 1878. After leaving Congress, he engaged in literary and historical research designed to compare and contrast the American and European codes of criminal procedure. In this line of work he published a report of the trial of the assassin of President Garfield, and a history of the celebrated case of Kring v. Missouri (see List of United States Supreme Court cases, volume 107).

He died in Chicago, and was interred in Graceland Cemetery.