Robert Applegate, PA

Looking for information on Robert Applegate from Pennsylvania.
Robert Applegateb. 5/12/1820 d. 4/16/1903
wife: Sarah, possibly Boom, b. 1830
children: Catherine 1848;Oliver 1850;Achsah12/1855m. Charles Klotz;Rebecca 1861;
Sarah 1864; Mary 1867; Frances 1/02/1870 and twin William d. 9/16/1901