William married Katherine (Katie) Adolph, daughter of August Adolph and Katherina Richter. August Adolph was born March 23, 1862 at Brienne, Bessarabia (Romania). August came to the Yakima Valley after his wife, Katherina died on March 12, 1930. He lived to the age of 86 and died April 25, 1949 at Yakima, Washington. 

    The John Wahl family came to America in March 1890, they settled at Scotland, South Dakota. In March 1890 they moved to Burlington, Colorado, then nine miles north of Bethune, Colorado. His son, William, married Katherine Adolph, she was born at Brienne, Bessarabia, So. Russia on October 18, 1887. She came to the United States with her parents in 1888. After her marriage they lived at Bethune, Colorado; Odessa, Washington; Wapato, Wa.; and Union Gap, Wa. William was a farmer, Katie a housewife. Born to them were: 

• Alma Hilda, born July 29, 1906 at Burlington, Colorado. She married Theodore R. Abener, they had two children. They were living at Coeur d'Alene, Idaho at the time of her death, January 3, 1982. 
• Mabel, born June 27, 1908 at Odessa, Wa. She married John Bastrom. She died November 19, 1946 while living at White Swan, Wa. They had two children, Perry and Gloria. 

The Wahl family were members of the Lutheran Church. Katherine preceded William in death, she died February 1, 1956 in Yakima and William March 20, 1958. Both are interred at Terrace Heights Memorial Park. 

GERMANS FROM RUSSIA IN THE YAKIMA VALLEY PRIOR TO 1940 by the Central Washington Chapter of the American Historical Society of Germans From Russia