My grandfather's name was Samual Krupp and my brother's name is Russell.. However I do not think Samual ever lived in Coopersburg but I may be wrong? I know he was born in Lithuania and moved to A town just outside Cape Town South Africa in the first half of the 20th century.
I live in MElbourne Australia and would love to find some information on my family's history.
I hope this posting is relevant for you in some way