When Johannis Gardenier was born in 1724, in Philipsburg Manor, Westchester, New York Colony, British Colonial America, his father, Jacob Albertse Gardenier, was 43 and his mother, Sara Jochem van Weert Wart, was 39. He married Sara Van Tassel on 23 April 1747, in North Tarrytown, Westchester, New York Colony, British Colonial America. They were the parents of at least 2 daughters. He died in 1755, in his hometown, at the age of 31.