Stone was borne in Stoneville, Rockingham County, North Carolina to Robert Tyler Stone and his wife Mary Starling Hamlin Stone. He had at least four brothers who survived into the 1960s. William Stone received a LLB degree from Washington and Lee University in Lexington, Virginia in 1933. He received an LLM degree from the Atlanta Law School in Georgia in 1936. He married M. Ivey Courtney. During World War II, Stone served in the U.S. Navy, earning the rank of Lieutenant Commander. Upon returning home, he was active in his Presbyterian church, the Kiwanis, and the Virginia Bar, being elected its vice president in 1953 and serving on its board of law examiners beginning in 1955.
Political career
Stone served as Martinsville's city attorney from 1957 until 1958. He was also a director of the Piedmont Trust Bank. In 1954 he and William F. Carter won election as the two delegates from Henry and Patrick Counties and Martinsville; Willey R. Broaddus Jr. had previously represented Henry County and Martinsville. Stone was re-elected in 1955. When state senator Frank P. Burton died in 1957, Stone ran for the seat, and was elected, thus representing the district which included Danville, Martinsville as well as Henry, Patrick and Pittsylvania Counties along with incumbent Landon R. Wyatt. In the same 1957 general election, Robert Lybrook Clark and Henry County Commonwealth attorney Albert L. Philpott won election as the two delegates representing Henry and Patrick Counties and Martinsville. As part of Massive Resistance, the Virginia General Assembly passed the Stanley plan in September 1956. Among the various laws were seven expanding the common law legal offenses of champerty, maintenance, barratry, running and capping, as well as the statutory violation of unauthorized practice of law. The legislature then appointed two committees to investigate the NAACP, which was pursuing the legal cases to desegregate Virginia schools. The Speaker of the House of Delegates appointed John B. Boatwright to chair the new Committee on Offenses against the Administration of Justice, with Stone and J. J. Williams Jr. as members; the President of the Virginia Senate appointed two additional members, E. Almer Ames Jr. of Onancock and Earl A. Fitzpatrick of Roanoke. Shortly after the January 1957 began, the committee issued letters requesting information from the NAACP as well as the Defenders of State Sovereignty and Individual Liberties and other segregationist organizations, and during the next month began subpoenaing NAACP membership lists. These activities prompted litigation in Richmond and several Virginia counties. In March, the Boatwright Committee opined that various segregationist organizations did not commit the newly expanded legal offenses of champerty, maintenance, barratry, running and capping, nor the unauthorized practice of law. However, the commission's report issued November 13, 1957 recommended enforcement of those laws against the various named NAACP lawyers. The subpoenas and other activities soon reduced NAACP membership in Virginia by half, but two years later the committee issued another report and Boatwright complained that the Virginia State Bar was not punishing those lawyers but instead spending $5000 on a Jamestown commemoration and $6350 on a new continuing legal education program. Ultimately, the Virginia State Bar tried to prosecute NAACP attorney Samuel W. Tucker, but a circuit judge in Emporia, Virginia dismissed the case in 1963. Stone and Landon P. Wyatt jointly represented the Virginia Senate, District 13, constituting Martinsville and Danville, and Henry, Patrick and Pittsylvania Counties for numerous terms, although the district was renumbered the 12th in the 1965 elections after reapportionment required by Davis v. Mann and the Civil Rights Act of 1965. W. Carrington Thompson succeeded Wyatt after the 1969 election. After the reapportionment required by the 1970 census, Stone was elected to the 20th District, which included Martinsville along with Franklin, Henry and Patrick Counties, but he died after the first session and Virgil H. Goode, Jr. replaced him during the second session.
Death
Stone died in North Carolina on August 19, 1973 and is buried in his family's ancestral plot in the Stoneville Cemetery. U.S. Route 220 near Martinsville and its intersection with Virginia State Route 57 is named after him.
