It's possible that some of these men might have had illegitimate children, but none of them lived in the white house.
Lyndon B. Johnson had two daughters
Richard Nixon had two daughters
Gerald Ford had three sons, but they were all over the age of 18 at the time he assumed office.
Jimmy Carter had a few children, but his youngest Jack was over 18 when he assumed office.
Ronald Reagan had two sons, Michael and Ronald but they were both over the age of 18
George H W. Bush had a few sons, but he youngest was 30 when he assumed office
Bill Clinton had one daughter
George W. Bush had twin daughters
Barack Obama had two daughters