Your ENGARD connection is a descendant of Adam ENGARD who immigrated to PA.
Adam arrived Philadelphia 1773, Sept. 18 on the "Brittania".30,000 Names ofImmigrants by Rupe, and PA German Pioneers, p. 750, Vol. I.
Research has revealed Adam was of Rossdorf near Darmstadt in Germany.
You can begin moving that line back with PROOF by viewing Robert as a four year old in a 1930 census record.He died 1968 - NOT 1986.You should be able to pull a death record and a birth record for him.