The Lynch family had immigrated to South Carolina from England in 1677. Thomas's great grandfather became a prosperous planter and a member of the colony's legislature. Successive generations moved to the Santee River where they expanded the family lands and built a plantation home. Thoma's father and grandfather were also part of the legislature, so naturally Thomas was sent back to England for a formal education in law when he was of age. When he returned to South Carolina, he married, inherited the Lynch plantation and settled into the live of a rice planter.
However in March of 1776, young Thomas Lynch received word that his father had suffered a cerebral hemorrhage. The South Carolina congress sent Thomas to tend to his father and take his place in the delegation. Therefore at the age of 26, Thomas Lynch Jr. joined Benjamin Franklin, Sam Adams, Thomas Jefferson and other delegates in creating the Declaration of Independence and signing his name to it. A blank spot was reserved for his father to sign it as well, but the man soon died from another hemorrhage.
In December of 1779, Thomas Lynch and his wife departed South Carolina for France on the advice of his doctor to rest and recover his health. Lost at sea, they were never seen again. He was only 30.