Charles Jordan, biological father of Wynonna Judd, died Thursday, Aug. 10, at his home in Louisa, Ky., near the West Virginia border, according to the coroner for Lawrence County, Ky. He was 56. Cause of death is still under investigation, the coroner said. The singer learned about her father's death Monday (Aug. 14), a spokeswoman for Judd said. Jordan lived alone. Judd grew up believing that Michael Ciminella, husband to her mother, Naomi Judd, and father to her sister, Ashley Judd, was her father. Wynnona learned that Jordan was her real father several years ago, but the two never met, the spokeswoman said. Jordan's body was cremated. A memorial service is planned for Saturday (Aug. 19), but details were unavailable at press time.