Thomas was born on November 3rd, 1812 in Chatteris Cambridge and his baptism took place there on November 29th, 1812. Thomas' father was Thomas Lemon and his mother was Sarah Palmer. His paternal grandparents were Thomas Lemon and Elizabeth Sewell. He had a brother named William. He was the older of the two children. He died due to Cancer of the stomach at the age of 75 on May 25th, 1888 in Adelaide Australia.