The Hazen diamond jubilee book includes extensive historical documentation, photographs, and family histories. Sections include; "Lure of the Land;" "Life on the Homestead;" "Hazen's German-Russians;" "Life on the Homestead;" and "Farms Were Diversified in Those Days." North of Hazen, there was the settlement Krem. These pioneering immigrants came from Crimean German villages in South Russia (today Ukraine). There are detailed indexes for businesses and family histories.
The "Family Histories" section of pages 158 to 363 includes these German names: Adolf, Axtman, Balszler, Beck, Beckman, Benz, Bergstedt, Blum, Boehm, Boettcher, Bohrer, Buchholz, Dietz, Ellwein, Erbele, Eslinger, Fandrich, Fiechtner, Flemmer, Fischer, Frank, Froeschle, Ganske, Geist, Goetz, Grinsteinner, Grosz, Guenthner, Gutsche, Haas, Heinemeyer, Heine, Heinz, Hertz, Hildebrand, Hoffman, Huber, Huff Hulm, Isaak, Keller, Kilber, Klein, Klundt, Knecht, Knoell, Krause, Kruckenberg, Kuch, Lauf, Lentz, Lehr, Maas, Mehlhoff, Miller, Mittelstaedt, Mueller, Oberlander, Oster, Radtke, Rahn, Reich, Reichenberg, Reiner, Reinhardt, Richter, Sailer, Scheid, Schlender, Schock, Schramm, Schrempf, Schuh, Schwab, Schwalbe, Schwartz, Schwarz, Seitz, Stroup, Teske, Ternes, Tesky, Thomas, Unterseher, Wagner, Weigum, Weiser, Weisz, Werner, Wetzel, Wiedrich, Weist, Wittmayer, Wolf, Zeiszler, Ziemann, and Zuern.