Which LaCosta Tucker sister had her first hit, "Delta Dawn", in 1972 at the age of 13?
La Costa:  The sister of country singer Tanya Tucker, LaCosta charted several singles of her own in the 1970s on the "Billboard" country singles charts, including the No. 3 "Get on My Love Train." Tanya Tucker: Tanya Denise Tucker (born October 10, 1958, in Seminole, Texas) is an American country music artist who had her first hit, "Delta Dawn", in 1972 at the age of 13.
Tanya Tucker