My Huyler / Hyler ancestors are mainly from Lexington County, South Carolina. Other spellings of this name include Hiler, Heyler and Hoyler. I can trace this line back to Gabriel Hoyler / Hyler, born abt 1794 in South Carolina. He lived in Lexington County with his wife, Abigail Gartman. According to census records, their children were Almenia, Reuhama, Nathan Washington, William, and Frances E. I descend through Nathan Washington Hyler, who served as a confederate soldier during the Civil War.
Other researchers have Gabriel's father as Barnet Bernard Hoyler / Hyler, whose parents are said to be Johann Michael Heyler and Hannah Catherine Morlokin. They are said to have been born in Baden, Germany. I have not seen documentation to prove these two generations.
If anyone else is researching this family line, I'd love to hear from you.