Early colonial records show that Peter Hairston and his family lived in Donegal, Lancaster County, Pennsylvania about 1730 and that they received a "Blunston License" for land in 1737.  Other than these two references, I am not aware of any other documents relating to their stay in America prior to 1743.

In the book A History of Lancaster County, by H.M.J. Klein, Ph.d., 1926, the following people were listed as having settled in Donegal area in 1730; James Buey, James Cook, Peter Hairston, James Hutchison, John Kelley, William and Alexander Mitchell, Thomas and John Scott.