Grandmother Louise Preston(Masters)-FL

My grandmother and I are working on the Masters' Family geneology/history/ tree.If anyone has any information that is helpful to us please respond.Thank you.We understand that our ansectors originated in Manorca, Spain.We are now in Elkton, FL (St. Augustine, FL).Some of our most recent ansectors lived in Fernadina Beach, FL.Once again thanks for any help.God Bless, Mike Miller/ Louise Preston (Masters).