Blekkink listed as B. Blekkink. Merkelbach, Karsten, Duiker listed as arch.-bur. Merkelbach, Karsten and Duiker. Van Hassel listed as N. van Hassel. Van Straaten listed as G.L. van Straten. Verhagen listed as J.C. and J.G. Verhagen, Leerdam, respectively. Van Griensven listed as Jos. van Griensven, Deurne. Van den Eynde listed as P. v.d. Eijnde. Van der Heijden listed as J. van der Heijde. Waskowsky listed without initial(s), Breda. Zwanenburg listed without initial(s), arch.-bur. Zwanenburg, Rijswijk (ZH). Van Breugel listed as Aug. Breugel.