Wilson's wife of more than 50 years, Josefina Villasenor Wilson, is Mexican-American, and a number of his compositions showed his love of Spanish/Mexican themes, especially "Viva Tirado", which later became a hit for the rock band El Chicano. Along with his wife, Wilson had three daughters (Jeri, Lillian (Teri) and Nancy Jo), his son Anthony (who is guitarist for Diana Krall), and a number of grandchildren, all of whom have songs composed for them - his compositions were often inspired by his family members.