Question: Who is the former Surgeon General namesake for the former hospital in Fort Devens?

Context paragraphs:
Fort Devens: Fort Devens is a United States Army Reserve military installation in the towns of Ayer and Shirley, in Middlesex County and Harvard in Worcester County in the U.S. state of Massachusetts.  It was named after jurist and Civil War general Charles Devens.  The nearby Devens Reserve Forces Training Area is located in Lancaster.  Although closed in 1996, the fort was reopened the next day as the Devens Reserve Forces Training Area.  The name reverted to Fort Devens in May 2007.

Surgeon General (Canada): The Surgeon General is the professional head of the Canadian military health jurisdiction, the adviser to the Minister of National Defence and the Chief of Defence Staff on all matters related to the health and health care of the Canadian Armed Forces, and head of the Royal Canadian Medical Service.  The Surgeon General is also the Commander of Canadian Forces Health Services Group, which fulfils all military health system functions from education and clinical services to research and public health.  It consists of the Royal Canadian Medical Service, the Royal Canadian Dental Corps, personnel from other branches of the armed forces, and civilians, with health professionals from over 45 occupations and specialties in over 125 units and detachments across Canada and abroad.  As Director General Health Services, the Surgeon General is also the senior health services staff officer in the Department of National Defence.  The Surgeon General is normally the only Canadian appointed to the Medical Household as Honorary Physician (QHP) or Honorary Surgeon (QHS) to Her Majesty the Queen.

John Shaw Billings: John Shaw Billings (April 12, 1838 – March 11, 1913) was an American librarian, building designer, and surgeon.  However, he is best known as the modernizer of the Library of the Surgeon General's Office of the Army and as the first director of the New York Public Library.  In his early years, he was a surgeon and a statistician on medicine in the U.S. Army.  Billings oversaw the building of the Surgeon General's Library, the nation's first comprehensive library for medicine.  Because of his innovative approaches to improving public health and hospitals, Billings headed the U.S. Census Bureau’s division of Vital Statistics and oversaw statistical compilation of censuses.  Along with Robert Fletcher, Billings started "Index Medicus", a monthly guide to contemporary medicine that ran for 16 months until his retirement at the Medical Museum and Library.  He also served as Johns Hopkins Hospital's medical advisor and authored reports regarding criteria for medical and nursing curriculum as well as hospital design.  In addition to his work at Johns Hopkins Hospital, he was a hygiene faculty member at the University of Pennsylvania, the director at University Hospital, and the Chairman at the Carnegie Institution.

Lovell General Hospital South: The Lovell General Hospital South is a former hospital at Fort Devens.  It was named after the first Surgeon General of the United States Army, Joseph Lovell.

Fort Devens Historic District: The Fort Devens Historic District is a historic district roughly bounded by El Caney St., Antietam St., Sherman Ave., MacArthur Ave. and Buena Vista Street in Devens, Massachusetts (encompassing territory in Ayer and Harvard.  The district encompasses a portion of the former Fort Devens, including a large number of historically and architecturally significant buildings.

Lovell General Hospital North: The Lovell General Hospital North is a former hospital at Fort Devens.  It was named after the first Surgeon General of the United States Army, Joseph Lovell.

Warren Fales Draper: Warren Fales Draper (August 9, 1883 – March 19, 1970) was Assistant Surgeon General and later Deputy Surgeon General of the United States Public Health Service.  After graduating from Harvard Medical School in 1910, Draper entered the Public Health Service, completing a two-year tour on the west coast followed by assignments near Washington D.C.  During World War I he was commissioned by the U. S. Army as a sanitation officer, working at Camp Lee and Newport News, both in Virginia, and then conducting relief activities during influenza outbreaks in New England and Pennsylvania.  Draper returned to the Public Health Service in 1919, and in 1922 was promoted to assistant surgeon general ahead of his peers.  When the Virginia State Commissioner of Health died in 1931, the state's governor borrowed Draper to fill the position, which he did for three years.  Five years after once again returning to the Public Health Service, in 1939, Draper was appointed as the Deputy Surgeon General, which position he held until his retirement.

Quinn H. Becker: Quinn Henderson Becker (born June 11, 1930) is a retired lieutenant general in the United States Army.  He was Surgeon General of the United States Army from February 1985 to May 1988.  Becker, who attended Louisiana State University's School of Medicine, is an orthopedic surgeon.  Before this stint as Surgeon General, Becker was Commandant of the United States Army Academy of Health Sciences, Deputy Surgeon General of the Army, and Chief Surgeon of the U.S. European Command.  He was promoted to Lieutenant General in March 1985.

Lovell General Hospital East: The Lovell General Hospital East is a former hospital at Fort Devens.  It was named after the first Surgeon General of the United States Army, Joseph Lovell.  After its closure, it was redeveloped into the United States Army Intelligence School.

Surgeon General of the United States Army: The Surgeon General of the United States Army is the senior-most officer of the U.S. Army Medical Department (AMEDD).  By policy, the Surgeon General (TSG) serves as Commanding General, U.S. Army Medical Command (MEDCOM) as well as head of the AMEDD.  The surgeon general's office and staff are known as the Office of the Surgeon General (OTSG) and are located in Falls Church, Virginia.

Supporting paragraphs: Lovell General Hospital North Fort Devens
Answer: Joseph Lovell