Leggett was born on October 12, 1848, in Ghent, New York. He went to high school at Claverack and attended college at Rutgers University as well as New Brunswick Theological Seminary.[2] In 1869, he organized a football team of Rutgers classmates to play against Princeton University. He was named captain by his teammates. Shortly before the game started, Leggett and William S. Gummere, the Princeton captain, developed the rules of play.[3] Under the guidance of Leggett, Rutgers won the first game in football history 6 to 4.[4] In the second game, Rutgers would lose to Princeton 0 to 8. He graduated from Rutgers 1872.[5] In 1875, Leggett became a pastor, which was his occupation until 1917. After 1917 he became the vice president of the Dutch Reformed Church where he would serve until his death in 1925.[6] Leggett died on October 28, 1925, in Nyack, New York, from a stroke.[7][8][9][10] He was 77 at the time of his death. He was inducted into the Rutgers Athletics Hall of Fame in 1989.[3]