de Marte was born into a Jewish family. His father, Vincent de Marte, is a criminal defense lawyer, and his mother, Dorrie Derfler, is a probation officer. Jonathan celebrated his
bar mitzvah at Temple Beth Am in Yorktown Heights. Growing up in
Yorktown Heights, New York, He was also named the 2010
Louisville Slugger New York Player of the Year, a 2011 Louisville Slugger
All-American, a two-time State Player of the Year by the New York Sportswriters, a two-time All-State pick, and a three-time All-Section and All-League honoree. The following season, before joining the disabled list due to injury, he was 2–4 with a 9.97 ERA. He was an
Atlantic 10 All-Academic honoree. He received an undergraduate degree in Rhetoric and Communications, and a graduate degree in Human Resources Management. ==Professional career==