The Fr. William A. Schmitz 4th degree Assembly 2258 was instituted in August 1991 in Kennewick Washington by Sir Knight John R. Klein, Master of the state of Washington. The new Sir Knights from an exemplification held September 1991 and the transfers from other assemblies made up the 55 charter members that started the new assembly.

2258 Charter

 Assembly Charter

   The assembly was chartered by the Supreme Council of the Knights of Columbus on October 12th 1991.