John Bullock Clark Jr. (Congressional Biographical Directory)
Reference
CLARK, John Bullock, Jr., (son of John Bullock Clark), a Representative from Missouri; born in Fayette, Howard County, Mo., January 14, 1831; attended Fayette Academy, and the University of Missouri at Columbia; spent two years in California for travel and adventure; returned to the East, and was graduated from the law department of Harvard University in 1854; was admitted to the bar and practiced in Fayette, Mo., from 1855 until the commencement of the Civil War, when he entered the Confederate Army as a lieutenant; promoted successively to the rank of captain, major, colonel, and brigadier general; resumed the practice of law in Fayette, Mo.; elected as a Democrat to the Forty-third and to the four succeeding Congresses (March 4, 1873-March 3, 1883); chairman, Committee on the Post Office and Post Roads (Forty-fourth Congress); unsuccessful candidate for renomination in 1882; clerk of the House of Representatives 1883-1889; engaged in the practice of law in Washington, D.C., until his death there, September 7, 1903; interment in Rock Creek Cemetery.
"Clark, John Bullock, Jr.," Biographical Directory of the United States Congress, 1774 to Present, http://bioguide.congress.gov/scripts/biodisplay.pl?index=C000442.