He was a founding partner of the Providence, Rhode Island, firm of Stone, Carpenter & Willson.

Mr. Stone was best known for designing many prominent Rhode Island buildings, including the Providence Public Library, Union Station, buildings at Brown University and the University of Rhode Island, and many private homes.

He attended the Washington Academy in East Machias until the family moved to Salem, Massachusetts .

[5] In 1859 Stone moved to Providence and entered the office of Alpheus C. Morse, where he studied architecture until the outbreak of the Civil War.

In the late nineteenth century he played a key role in guiding the expansion of Swan Point Cemetery, continuing the precepts of the original design.

[9] Alfred Stone died at the home of his niece on September 4, 1908, in Peterborough, New Hampshire, and was buried in Swan Point Cemetery in Providence.

Stone Road runs from the northern end of Blackstone Boulevard on Providence's East Side to Riverside Cemetery in Pawtucket.

[9] Stone joined the American Institute of Architects in 1870, and was one of the founders of the Rhode Island chapter in 1875.