I also know Kinghorn's in Florida. I had never heard the name Kingorn until I met thier Father Willy Kinghorn in Jacksonville,Fl.He has a twin brother named Bill Kinghorn.Alo thier is a man in Miami that was looking for Kinghorn's on the Jacksonville area. The Kinghorn's I knew (MY Childrens Father) Fathers Family came to Canada. My Father in Law had famili that we know about in Sault Ste. Marie, Michigan and Dulth Minn. Tom Kinghorn was in Michiagm and Walter was in Minn. Another Brother went on West I beloeve to Idaho.If you will email me I will send you the written information that I have.