On October 15, 1873, Mr. Hartwell married Mary Loring Hartshorn, who was born in Providence, August 14, 1851, daughter of the late Rev. Joseph Charles and Rachel (Thurber) Hartshorn. They were the parents of the following children: 1. Joseph C., born at Warwick, R. I., Aug. 20, 1874; educated in the public schools of Providence, prepared for college at the Worcester Academy, and was graduated from Brown University in the class of 1899, with the degree of Bachelor of Arts; he is now employed in the engineering department of the General Fire Extinguisher Company of Providence; he is a member of the University Club among others, and makes his home with his sister in Providence. 2. John S., born Dec. 22, 1875, died in 1882. 3. Lucy King, born Feb. 16, 1878; attended the public and high schools of Providence, and was graduated from the Abbott Academy at Andover, Mass.; she married William B. Peck, of Providence, and they are the parents of three children: Margaret Hartwell, born July 19, 1904; Ruth Hartshorn, born Dec. 13, 1906; Virginia Hunter, born June 12, 1913. 4. Mary Hartshorn, born Nov. 21, 1882, died July 1, 1915; she attended the public schools of Providence, and continued her studies at Dana Hall, Wellesley, and Brown University; she married Leonard Woolsey Cronkhite, of Boston, and has one daughter, Elizabeth. 5. Helen Thurber, born Oct. 28, 1885; attended the public and high schools of Providence, and was graduated from Wellesley College in the class of 1908; she married Rev. W. Douglas Swaffield, now of East Boston, Mass.; they are the parents of three children: Esther Harding, born Nov. 17, 1913; Frederick Hartwell, born April 13, 1915; Marian Nichols, born Aug. 6, 1916. Frederick W. Hartwell died at his home, No. 77 Parade street, Providence, Oct. 9, 1911, and is buried in Swan Point Cemetery. Mrs. Hartwell, who survives her husband, resides at No. 16 Freeman Parkway, Providence, R. I.