Bob Margarita is best known as the last coach of the major college football era at Georgetown, but was a well known figure in Eastern football for many years prior.

At 5-10 and 170 pounds, Margarita was an All-East running back at Brown, and whose 233 yard effort versus Columbia in 1942 remains a school record to this day. He continued on to the NFL, finishing in the top four in league rushing in two consecutive seasons for the Chicago Bears in 1944 and 1945. According to Brown University records, he was "named to the All-Pro backfield in 1945, together with Sammy Baugh, Bob Waterfield, and Steve Van Buren", each of whom would go on to the Pro Football Hall of Fame.

After injuries held Margarita to just one game in the 1946 season, he returned east as an assistant coach at Harvard. In 1948, Jack Hagerty hired him to be an assistant at Georgetown, but eight days later Yale offered Margarita a $7,500 annual salary to be their assistant coach, an amount just $1,000 less than what Hagerty made as head coach and well above anything GU could match for an assistant. Hagerty graciously released Margarita from his contract at Georgetown, but was able to welcome him back a year later--when Hagerty was moved aside as head coach after the 1948 season, he recommended Margarita for the Georgetown job and the recommendation was accepted. At 28, Margarita signed a five year contract at $8,500 a year and became the youngest head coach in major college football.

Despite an increase in scholarships and the return of most of Hagerty's men from 1948, Margarita's Hoyas lacked the depth needed in the new era of two-platoon college football. The 1948 Hoyas started 4-1 on the season and earned a bid to the Sun Bowl versus what is now UTEP, but lost four of its last five to end the season. A move to a wing-T formation in 1950 did not help things, as the Hoyas struggled to a 2-7 finish.

Margarita could see the attendance numbers, which had dropped for five consecutive seasons. In 1946, Georgetown averaged 12,821 a game, but by 1950 that number was just over 5,000 a game, and ticket money was not covering road trips nor scholarships. He proposed dropping Penn State, Tulsa and Miami on the 1951 schedule for regional teams at Lafayette, Bucknell and Richmond, but it was too late. On March 23, 1951, Rev. Hunter Guthrie S.J. dropped the sport, giving his head coach no advance warning. "I had no inkling of this until this morning," a disconsolate Margarita told the Washington Post.

Georgetown offered Margarita a post as an instructor in its physical education department to honor his contract, which he declined. He returned to New England, serving multiple assignments as an assistant coach at Harvard and Boston University for the next decade, and 13 years as a high school coach at Stoneham High School.

At the time of his death in 2008, Bob Margarita was a member of the Brown University Hall of Fame and an honoree of the Massachusetts High School Football Coaches Association.

Year	Record	Pct.	Home	Away
1949	5-5	0.500	3-2	2-3
1950	2-7	0.284	0-4	2-3
Totals	7-12	0.368	3-6	4-6