Cookbook. Waldorf. - Gustav Adolph Schlaak married Wilhelmina Amelia Gehring . They were parents to eleven children: Willhelm Gustav, Herman Edward, Eda or (Edith) Amelia, Julius August, Ella Augusta, Emma Caroline, John Friedrich, Clara Louise, Bernhardt David, Ludwig Gottfried and Adeline Wilhelmina. Inserted in the cookbook #17.97.1