St. William Catholic Church Located in St. Simons Island, Georgia. Come celebrate with us! Mass Times → Grace and Truth For God did not send his Son into the world to condemn the world, but to save the world through him. John 3:17 Browse gallery → Amazing Encounter "And those who diligently seek me will find me." Proverbs 8:16 Mass Times → Our History The catholic presence on St. Simons Island dates back to 1500's. Read More → An Invitation to Prayer "Thy Kingdom come, Thy will be done in earth, as it is in heaven." Matthew 6:10 Mass Times →