James Robert Mann
House Minority Leader
In office March 4, 1911 – March 3, 1919
Preceded by	Champ Clark
Succeeded by	Champ Clark
Leader of the House Republican Conference
In office March 4, 1911 – March 3, 1919
Preceded by	Joseph Gurney Cannon
Succeeded by	Frederick H. Gillett
Member of the U.S. House of Representatives from Illinois
In office March 4, 1897 – November 30, 1922
Preceded by	J. Frank Aldrich
Succeeded by	Morton D. Hull
Constituency	1st district (1897–1903) 2nd district (1903–22)
Chicago Alderman from the 32nd Ward
In office 1892–1896
Personal details
Born	(1856-10-20)October 20, 1856 Bloomington, Illinois
Died	November 30, 1922(1922-11-30) (aged 66) Washington, D.C.
Resting place	Oak Woods Cemetery
Political party	Republican
Education	University of Illinois Union College of Law

James Robert Mann (October 20, 1856 – November 30, 1922) was an American politician and attorney who served as a member of the United States House of Representatives from Illinois from 1897 to 1922. He was a member of the Republican Party, and served as House Minority Leader from 1911 to 1919.^[1]

James Robert Mann was born near Bloomington, McLean County, Illinois, on October 20, 1856. His older brother was Frank Irving Mann (1854–1937) farmer, editor of the Prairie Farmer news publication, and author of The Farmers Creed.

Mann attended University of Illinois and graduated in 1876. He graduated from Union College of Law in 1881 and became a lawyer in Chicago. Mann held several local political offices before serving in the House of Representatives.

He was admitted to the Illinois bar in 1881 and commenced his practice in Chicago. He held several local offices before being elected as a congressman:

• Member of the Oakland Board of Education in Chicago (1887)
• Attorney for Hyde Park and the South Park commissioners of Chicago
• Chairman of the Illinois State Republican convention (1894)
• Member of the City Council of Chicago (1892–1896)
• Master in chancery of the Superior Court of Cook County
• Chairman of the Republican county conventions at Chicago (1895, 1902)
• Elected as Republican (1896) to the 55th Congress with 13 successive terms^[2]

• Chairman, Committee on Elections No. 1 (58th–60th Congresses)
• Committee on Interstate and Foreign Commerce (61st Congress)
• Committee on Women Suffrage (66th Congress)
• Minority Leader (62nd–65th Congresses)

Congressman Mann was one of the sponsors of the Mann-Elkins Act, which gave more power to the Interstate Commerce Commission to regulate railroad rates. He is probably best known for his authorship of the Mann Act of 1910, which was a reaction to the "white slavery" issue and prohibited transportation of women between states for purposes of prostitution. He introduced legislation that became the Pure Food and Drugs Act of 1906.

He was considered to be a leader in the cause of amending the United States Constitution to grant suffrage to women. However, he was quoted as saying, "'They should have been at home where they belonged,' referring to the women in the pageant."^[3] He was a leading opponent of the Harrison Narcotics Tax Act and Prohibition, despite the popularity of such legislation amongst his fellow Midwestern progressives.

Mann died in Washington, D.C., of pneumonia on November 30, 1922, at age 66 before the close of the 67th United States Congress.^[1] He was interred in Oak Woods Cemetery in Chicago.

• List of United States Congress members who died in office (1900–49)

 This article incorporates public domain material from MANN, James Robert. Biographical Directory of the United States Congress.

• Ellis, L. Ethan. "James Robert Mann: Legislator Extraordinary". Journal of the Illinois State Historical Society 46 (Spring 1953): 28–44. JSTOR 40189273.
• Extended bibliography – United States Congress website

Wikimedia Commons has media related to James Robert Mann (Illinois).

• James R. Mann, late a representative