I found the parents of Aaron Egalph Capp. I got the information from the Perry Historians in Newport, PA.
His father was Henry A. Kapp b.26-Dec-1820 in Hagerstown, Washington Co., MD., d.7-Nov-1887 in Shermansdale, Carroll Twp., Perry Co., PA., married Elizabeth Hager b.Dec-1818 in unknown place, d.29-Apr-1901 in Falling Springs, Perry Co., PA.
Michael Kapp, Jr. b.1786 in Hagerstown, Washington Co., MD., d.24-Oct-1823 in Hagerstown, Washington Co., MD., married 24-Aug-1808 in Hagerstown, MD to Mary Lorshbaugh b.15-Jan-1785 in Lancaster, Lancaster Co., PA, d.24-Oct-1855 in Pleasant Valley, Carroll Co., MD.
George Michael Kapp b.24-Nov-1745 in Heidelberg Twp., Lancaster Co., PA., d.17-Sep-1804 in Hagerstown, Washington Co., MD.(note: Heidelberg Twp. is now in Lebanon/Berks Counties, PA.), md.unknown date to Maria Catharina Neff b.16-Jul-1747 in Heidelberg Twp., Lancaster Co., PA., d.13-Sep-1833 in Hagerstown, Washington Co., MD.
Georg Frederick Kapp b.5-Jan-1709 in Bottenweiler, Germany, d.2-Apr-1749 in Heidelberg Twp., Lancaster Co., PA., md.26-Feb-1739 in Tulpehocken, Lancaster Co. (now Lebanon Co.), PA to Eva Maria Graff b.abt.1710