When Joseph Bloomer was born on 24 February 1732, in Rye, Westchester, New York, United States, his father, Joseph Bloomer, was 24 and his mother, Mercy Merritt, was 22. He married Sarah Weigand on 24 February 1755. They were the parents of at least 9 sons and 2 daughters. He died in 1792, in Ulster, New York, United States, at the age of 60, and was buried in New York City, New York, United States.