Admitted to Alabama Bar Association, 1954 and Ohio Bar Association. 1954.

Attorney for Claudette Colvin, Rosa Parks, Martin Luther King, Jr. and Montgomery Bus Boycott participants. 1955–1956

Browder v. Gayle, Supreme Court held City Ordinances requiring segregation of buses in Montgomery, Alabama to be unconstitutional. 1956.

United States Supreme Court rendered decision on legal case argued by Gray, that laid the foundation for the concept of “one man, one vote”, Gomillion v. Lightfoot. 1960

United States Supreme Court ruled in NAACP v. State of Alabama that the NAACP could resume doing business of protecting the rights of African Americans in Alabama. 1964

Supreme Court ruled in Dixon v. Alabama State Board of Education—students are entitled to a due process hearing prior to expulsion. 1961

Vivian Malone v. Dean of Admissions, University of Alabama – This case opened the door for African Americans to attend the University of Alabama in spite of Governor Wallace's infamous school door stand. 1963

Franklyn v. Auburn University – This case opened the door for African Americans to attend Auburn University. 1963

Lee v. Macon – A statewide order requiring all public elementary and secondary schools not under court order must desegregate. 1963–1968

Gray represented freedom marchers in the state of Alabama. Freedom walkers and freedom riders needed legal action to provide protection as they participated in the Selma to Montgomery March, which subsequently led to the passage of the Voting Rights Act. 1965

Elected to the Alabama State Legislature – One of the first African Americans to serve since reconstruction. 1979

Represented the participants in the notorious Tuskegee Syphilis Study. 1972

President-Elect of the National Bar Association. 1984; President of the National Bar Association. 1985

Author of Book – Bus Ride to Justice. 1995

Initiated actions that resulted in a formal apology at the White House from the United States government for the wrongs done to the participants in the Tuskegee Syphilis Study. 1997

Established the Tuskegee Human and Civil Rights Multicultural Center. 1997

Author of Book – The Tuskegee Syphilis Study. 1998

Inducted into the International Society of Barristers. 2000

Depicted in the HBO movie Boycott.

President-Elect of the Alabama Bar Association. 2001