 Hewit is the son of Russell and Nan Hewit, and his siblings are Grant, Meghan and Rusty. Born November 8, 1985, and raised in Chatham, New Jersey, Hewitt began playing lacrosse as a youth. Both of his older brothers played and introduced him to the sport. Hewit started playing lacrosse in fourth grade in a local recreational league in his hometown. By sixth grade he was converted from an attackman to a goalie, but not until the coaches convinced his mother's that her concern for her son's safety were unwarranted. He met his middle school, high school and college teammate Dan Cocoziello taking an entrance exam for the Delbarton School in sixth grade. On the seventh and eighth grade team and the freshman team at the Delbarton School he also played goalie. In eighth grade, he made a New Jersey state eighth-grade all-star team along with Cocoziello that competed against all-stars from other states. He made the varsity team as a sophomore and helped lead the team to a cumulative 63 – 4 record and three high school lacrosse state championships. He was an all-state and all-conference goalie who made the headmaster ’ s list as a student. He was regarded as the fifth-best high school lacrosse recruit in the nation in the 2003, according to Inside Lacrosse. Since his older brother Grant was at Princeton, the college was on his short list along with Johns Hopkins, Duke, Harvard and Dartmouth. Grant later became captain of the 2006 Tigers lacrosse team.
