Claim: William Dering is first recorded as a dancing master in Philadelphia, he is said to have been respected as well for his talents on the French horn and in 1737 he moved to Gloucester County.
Evidence: Dering is first recorded as a dancing master in Philadelphia, Pennsylvania, from 1735 to 1736. A good conversationalist, he is said to have been respected as well for his talents on the French horn; his school also offered lessons in "Reading, Writing, Dancing, Plain Work, Marking, Embroidery, and several other Works: where Likewise young Ladies and Gentlemen may be instructed in the French." Dering had moved to Gloucester County, Virginia by 1737.