At the 1964 Democratic National Convention in Atlantic City , New Jersey , Brown led the state delegation in opposition to the seating of the Mississippi Freedom Democratic Party , rather than the Mississippi state party regulars . However , there was no walkout considered by the Louisiana delegation in support of the Mississippians when two MFDP delegates were seated as at-large members . A walkout over the civil rights plank had occurred at the 1948 party convention in Philadelphia , Pennsylvania , which led to the third party bid by Strom Thurmond of South Carolina , who challenged U.S. President Harry S. Truman and the Republican Thomas E. Dewey . During the 1960s , Brown served on the Louisiana State Board of Education , an elected position , as the representative of Louisiana 's 2nd congressional district
1964 Democratic National Convention
1964 Democratic National Convention
J. Marshall Brown