Jaan was born in 1751. Jaan's father was Hindrik and his mother is Ann. His paternal grandparents were Peeter and Ädu; his maternal grandfather is Karl. He had two brothers and four sisters, named Hans, Evert, Margret, Mai, Madli and Mari. He had three half-brothers and four half-sisters, named Märt, Juhan, Volmer, Katri, Mari, Anu and Tiiu. He died at the age of 37 in 1788.