Dannielynn is the younger half-sister of Daniel Wayne Smith (1986–2006). Dannielynn's mother had previously been married to Billy Wayne Smith from 1986 until 1993 and J. Howard Marshall II from 1994 until his death in 1995. In May 2006, Smith approached her former boyfriend, Ben Thompson of South Carolina, to inform him that he was the father of her unborn child. Thompson told Smith that was impossible because he had a vasectomy. Smith lived in Thompson's house in the Bahamas which was the subject of ownership dispute between them.