Question: Sheldon Gilgore served as president of a company that is about 50 miles west of what city?

Context paragraphs:
Sheldon Gilgore: Sheldon Gilgore (February 13, 1932 – February 12, 2010) was an American physician and executive who served as president of Pfizer and CEO of G.D. Searle.  He also served as chairman of the board of Clark University and was a member of the founding family of the Connecticut Grand Opera.

Wintersburg, Arizona: Wintersburg is a census-designated place in Maricopa County, Arizona, United States, located about 50 miles west of Phoenix, and 15 miles west of Buckeye along Interstate 10.

Crocker Field: Crocker Field is an outdoor sports and recreation facility for the children of the Fitchburg Public School System in Fitchburg, Massachusetts, 28 miles north of Worcester and 50 miles west of downtown Boston.  The complex consists of a number of athletic facilities on a 5.5 acre plot of land near the Nashua River.  There are indoor and outdoor playing areas, an outdoor stadium, a field house, and a ticket booth and concession stand.  The site is enclosed on three sides by a wrought iron fence resting on a concrete base, with periodic square concrete pillars.  Most of the complex was built in 1918,

Fry Canyon, Utah: Fry Canyon was a small community in San Juan County, Utah, USA, located in Fry Canyon, just south of White Canyon, 50 miles west on State Route 95 from its junction with U.S. Route 191 at Blanding.  Fry Canyon was a uranium boom town during the 1950s, and the Fry Canyon Lodge opened in 1955, but it has since closed in 2007.  The tiny hamlet, now a ghost town, is 19 miles west-southwest of Woodenshoe Butte, and 8 miles west-northwest of Natural Bridges National Monument.

Gobernador, New Mexico: Gobernador is a small, unincorporated community located in Rio Arriba County, New Mexico.  Although not on a Native American reservation, Gobernador is about 50 miles east of the Navajo Indian Reservation and 15 miles west of the Jicarilla Apache Indian Reservation.  Carson National Forest also lies about five miles to the east.  The community is situated near the junction of U.S. Highway 64 and New Mexico State Road 527.  The nearest towns are Aztec, New Mexico, Dulce, New Mexico, and Arboles, Colorado.  Gobernador lies in between the dry, arid land of northwest New Mexico and the forested, mountainous land of north central New Mexico, with sandy soil, smaller trees and other plants, and shorter mountains and mesas.

Red River Valley Conference: The Red River Valley Conference was formed from a portion of the Lutheran Minnesota Conference of the Augustana Evangelical Lutheran Church in 1912.  In 1941 the Red River Valley Conference also absorbed the Bismarck and Sheyenne districts of North Dakota, previously of the Minnesota Conference.  Originally, the conference included both the Red River Valley as well as North Dakota to the west and extended to the St. Paul District to the east, covering about 300 miles west to east and 50 miles north to south.

Lyndon B. Johnson National Historical Park: Lyndon B. Johnson National Historical Park is a United States National Historical Park in central Texas about 50 miles west of Austin in the Texas Hill Country.  The park protects the birthplace, home, ranch, and final resting place of Lyndon B. Johnson, 36th President of the United States.  During Johnson's administration, the LBJ Ranch was known as the "Texas White House" because the President spent approximately 20% of his time in office there.

Nuchek, Alaska: Nuchek (Núciq) is an abandoned village in the U.S. state of Alaska.  It is located on Hinchinbrook Island at Port Etches bay, Prince William Sound.  It is situated approximately 50 miles to the west of the mouth of Copper River and 432 miles west of Sitka.

Clark University: Clark University is an American private research university located in Worcester, Massachusetts, the second largest city in New England.  It is adjacent to University Park about 50 miles west of Boston.

Iniakuk Lake: Iniakuk Lake is located on the southern edge of the Brooks Range, 50 miles west of Bettles, Alaska.  The lake is one mile wide and just over 5 miles long.  It has a maximum depth of 63 meters or 200 feet.  It is 6 miles outside Gates of the Arctic National Park and Preserve and 60 miles north of the Arctic Circle.  This lake drains into the Iniakuk River from which the lake received its name.

Supporting paragraphs: Sheldon Gilgore Clark University
Answer: Boston