He held the distinction of being the only Maryland State Senator to have voted against both repealing the ban on interracial marriage, and permitting same-sex marriage.

Stone served in the Maryland House of Delegates from 1963 to 1967.

Stone was a member of the Maryland General Assembly for more than 50 years.

[2] In June 2012, Stone was appointed by Maryland legislative leaders to a task force to study the impact of a Maryland Court of Appeals ruling regarding the liability of owners of pit bulls and landlords that rent to them.

[5] Stone died at the Anne Arundel Medical Center in Annapolis, Maryland on June 16, 2023.