Dan Beach Bradley was born on 18 July 1804 in Marcellus, New York. He was the son of Judge and Pastor Dan Bradley of Whitehall, New York, and Eunice Beach. Eunice died soon after giving birth to her son. As a child, Dan Beach Bradley was an astounding scholar and he loved to read. When Bradley was 20 years old, he suffered a week of deafness and it caused him to examine his spiritual life. Two years after this incident, Bradley dedicated his life to serve Jesus Christ.