Other form of name PPP: Luebkerus, Fridericus, 1811-1867 Other form of name PPP: Lübker, Federico, 1811-1867 Other form of name PPP: Lübker, Fridericus, 1811-1867 Other form of name PPP: Lübker, Friedrich H., 1811-1867 Other form of name PPP: Lübker, Friedrich Heinrich Christian, 1811-1867