The Clark sisters talk about all the siblings... Jackie and their brother Leo are from their mother's first marriage, in fact Jackie's last name was originally Cullum and the second marriage to Elbert produced Denise, Dorinda, Elbernita (a.k.a. - Twinkie) and Karen... I believe their brother works with them behind the scenes... I saw them in an interview on BET's Lift Every Voice and they went into detail on many things about their lives. Denise Clark I believe is married now and goes by Denise Clark Bradford and I think those children she had out of wedlock are by the same man whom she eventually married, she has seven children now... But damn do all of their names have to hyphenated...