In 1962, Cook made a speech in the Georgia State Capitol to take down the "
Peyton Wall," a barrier that was built to stop
black citizens from moving into a
white section of
Atlanta. His speech incited the
KKK to burn a cross on the lawn of his home in
Buckhead. He encouraged Atlanta citizens to participate in urban renewal and contested systems that discriminated against minorities, particularly in regard to housing rules. He was one of just five white representatives (out of 205) who voted to seat the duly elected African American candidate
Julian Bond in the state legislature in 1966. The legislature removed Bond due to his anti-war positions. The United States Supreme Court returned him to office. Cook was the lieutenant of Mayor's
William B. Hartsfield and
Ivan Allen, shepherding federal and state funding to the City of Atlanta resulting in unprecedented growth during the 1960s and 1970s. He counted
Martin Luther King Sr., known as Daddy King, as a friend, and was instrumental, along with Mayor Allen and
Coca-Cola CEO
Robert Woodruff, in keeping Atlanta peaceful in the aftermath of the assassination of Dr
Martin Luther King Jr. His career was championed by the Atlanta business community, particularly Mills B. Lane, Savannah native and CEO of the Citizens and Southern National Bank, (now
Bank of America), and also James D. Robinson Jr., CEO of the First National Bank of Atlanta, (now
Wells Fargo). Cook championed the careers of
Paul Coverdell and
Newt Gingrich, later a United States senator and Speaker of the House of Representatives respectively. Both men were trusted advisors to Cook and Speaker Gingrich noted this in a speech he made on C-Span decades later. The papers of Cook are housed at the
Richard B. Russell Library for Political Research and Studies, University of Georgia Libraries. ==Personal life==