Ralph E. Knudsen1

M
Relationship
10th great-grandson of Herman Op Den Graeff
Charts
Herman Op Den Graeff descendants (Aldekerk, Rheinland, Duchy of Prussia)
Isaac Hermans Op Den Graeff and Greietjen Pieters descendants
     Ralph E. Knudsen is the son of Harold E. Knudsen and Zula Fox.1
Last Edited=26 Apr 2010

Citations

  1. [S15] June (Shaull) Lutz, History of the Op Den Graef / Updegraff Family (Grand Rapids, Michigan; 1433 Elderwood Ct. N.W.: J. S. Lutz, 1988), p. U-224.