Derek Sanderson Jeter was born on June 26, 1974, in Pequannock Township, New Jersey, the son of accountant Dorothy (née Connors) and substance abuse counselor Sanderson Charles Jeter. His mother is of English, German, and Irish ancestry, while his father is African-American. They met while serving in the United States Army in Germany. His father played baseball at Fisk University in Tennessee as a shortstop, and holds a PhD. When Jeter was a child, his parents made him sign a contract every year that defined acceptable and unacceptable forms of behavior. Dorothy instilled a positive attitude in her son, insisting that he not use the word "can't." It was a baseball family, and Jeter's younger sister Sharlee (born 1979) was a softball star in high school.