HART. MART WELL. He enlisted as a private soldier in the ist Massachusetts heavy artillery, March 20, 1862 ; was promoted to sergeant, ist sergeant, and 2d lieutenant in that regi- ment. In 1864 he resigned his commission in the ist heavy artillery, and immediately joined the 36th regiment, United States colored troops, as captain. He was pro- moted to major and lieutenant-colonel of the 36th, and was breveted colonel of WILLIAM H. HART. United Stales volunteers by President Johnson. Me commanded the 36th regi- ment for nearly two years of the three it was in service. He was for a time assis- tant adjutant-general of a brigade in the 25th army corps, and was .also assistant inspector-general of the same corps. He served continuously for four years and ten months, and during the whole time was on active duty. After his retirement from service he was a customs officer in Boston for several years. He is now in practice as attorney and counselor-at-law, with offices in Chelsea and Boston. He has always been an active politician in the Republican ranks, and has partici- pated extensively as a campaign speaker in all the campaigns, both state and national, for many years. He has, how- ever, held no political office and has never sought political preferment. He was com- mander of Post 35, G. A. R., Chelsea. 1878 ; since then has been aide-de-camp, judge- advocate and senior vice-commander of the department of Massachusetts, G. A. R. At the present time he is trustee and corporation counsel of the Chelsea Day Nursery and Children's Home ; corporation counsel of the Old Ladies' Home, Chelsea, and secretary of the Chelsea Mutual Bene- fit Association. He is also senior special justice of the Chelsea police court, justice of the peace, and vice-chairman of the Chelsea school board. Besides the campaign speaking cited, he has delivered many addresses and lectures upon various topics. He always speaks for some G. A. R. post on Memorial Day, and occasionally has spoken for three organizations on the same day, and has been compelled to decline as many more invitations to perform the same service. He has been in active practice since his admission to the bar in 1874. Colonel Hart was married in Spring- field, February 1, 1S66, to Susan J., youngest daughter of Samuel and Susan (Waterman) Harris. Of this union are two children : Lucy Humphrey and Mar- ian Lovis Hart. Colonel Hart is a man of strong individ- uality and possessed of the necessary courage to defend his convictions. HARTWELL, BENJAMIN HALL, son of Benjamin Franklin and Emma (Whitman) Hartwell, was born in Acton, Middlesex county, February 27, 1845. His preparatory education was obtained in the public schools and Lawrence Acad- emy, Groton, he having been graduated from the latter institution in the class of 1865. He entered Jefferson Medical Col- lege, Philadelphia, and was graduated in 1868. He immediately began the prac- tice of medicine in Troy, N. H, but re- moved to Groton Junction, Ayer, in 1869, where he is still in practice. Dr. Hartwell was married in Ayer, Sep- tember 10, 1S79, to Helen E., daughter of the late Eusebius S. Clark (major of the 26th Massachusetts volunteers — killed at Winchester, Va., 1864) and Mary J. (Shat- tuck) Clark. He has no children. Dr. Hartwell was connected with the medical department, Massachusetts volun- teer militia, 10th regiment, on staff of Col- onel J. W. Kimball for three years; has been United States medical pension examiner since 1875 ; is a member of the Massachu- setts Medical Society, and corresponding secretary of the Massachusetts Medico-