Fallon was born in Augusta, Maine, on January 4, 1952,[1] and attended Yale College, graduating in 1975 with a Bachelor of Arts degree.
He then accepted a Rhodes Scholarship to the University of Oxford, where he completed an interdisciplinary undergraduate degree in philosophy, politics and economics in 1977.
Fallon returned to the United States and earned a Juris Doctor degree from Yale Law School in 1980.
Fallon subsequently served as a law clerk for Judge J. Skelly Wright of the United States Court of Appeals for the District of Columbia Circuit and Justice Lewis F. Powell Jr. of the Supreme Court of the United States.
[8] He was appointed by U.S. President Joe Biden as a member of the Presidential Commission on the Supreme Court of the United States in 2021.