1 Roberts, Charles Rhodes, History Of Lehigh County, Pennsylvania, Volume II (Allentown, Pa., Lehigh Valley Pub. Co., 1914. 3 volumes, illustrated, maps. Prepared by a committee appointed by the Lehigh County Historical Society; chapters contributed by various writers.).

2 Dr. Charles E. Jarrett, Elizabeth Jarrett Walton, Jarrett Pennslyvania to North Carolina and Beyond (Family History Publishers, Bountinful, Utah 84010. 2007 second printing. Online version at https://dcms.lds.org/delivery/DeliveryManagerServlet?dps_pid=IE61450), Page 23.

3 Dorothy Elsie Worman, Gilbert, Knappenberger, Jarrett & Allied Families (Allentown, Pennsylvania. 1990.), Pages 397-399.