Gray served as an Assistant attorney general for the Commonwealth of Virginia from 1949–1957 and briefly as attorney general. Between those public service stints, he was a partner at various law firms, including Williams Mullen, and later at Gray, Sinnott, Tucker & Duke in Chesterfield, Virginia. In 1965, Gray's testimony that Virginia did not discriminate against black voters was subject to cross-examination by U.S. Senator Edward Kennedy, which civil rights attorney and later fellow Virginia State Senator Henry L. Marsh believes led to the passage of the Voting Rights Act of 1965. In 1967 Gray argued and lost Green v. County School Board of New Kent County before the U.S.Supreme Court; the court striking down the nominal school choice plans based on their actual performance. Gray served in the Virginia House of Delegates from 1966 until 1972, when he began service in the Virginia Senate. In the redistricting after Davis v. Mann for the 1965 election the district consisting of Chesterfield County and the City of Colonial Heights, previously represented by Edward M. Hudgins, received an additional delegate slot. Gray and John S. Hansen won election to represent that district District 23. Gray was re-elected in 1967 and 1969, but Hansen resigned between those elections, and was replaced by Republican George Wilson Jones. Also, in the 1969 election, Jones polled more votes than Gray in the 2-member district, which was split and after the 1970 census such that Jones won re-election to the 36th district in subsequent years. Alexander B. McMurtrie Jr. succeeded Gray, who ran for the state Senate in 1971. Gray represented Chesterfield County with various adjacent areas in the 11th Senatorial District. He first won election to the newly configured 11th district in 1971. Lloyd C. Bird had previously represented Chesterfield County, along with Amelia, Charles City and New Kent Counties and the city of Colonial Heights as District 29 in the 1967 election and with James City County and the City of Williamsburg rather than Amelia County in the 1963 election as District 32, and before that with Charles City, Chesterfield and Henrico Counties and the city of Colonial Heights as District 33. Before the 1971 election, District 11 encompassed various counties south and west of Chesterfield County, not even adjacent to Chesterfield County. In any event, the district configuration changed after the election, so that in 1974 and 1975 Senator Gray represented Chesterfield and Henrico counties, with another part of Chesterfield county agglomerated with Amelia, Brunswick, Cumberland, Lunenburg, Mecklenburg, Nottoway and Powhatan Counties in District 17, represented by James T. Edmunds. Neither Gray nor Edmunds was opposed. Gray also won re-election unopposed in 1975 and 1979. Republican Robert E. Russell Sr. ran unopposed in that district in 1983. A past president of the Chesterfield Bar Association, Gray also served on the board of directors of Pioneer Savings & Loan and Jefferson National Bank.
Death and legacy
A bridge on Route 295 over the Appomattox River was named in his honor in 1998. His children also established a charitable trust in honor of their parents.
