The Centennial Farm Recognition Program was a one-time effort conducted by the Washington State Department of Agriculture as a part of the state's Centennial celebration. This addendum includes profiles of 21 farms, identified in 1989, that met the criteria but did not meet the Washington Centennial Farm project deadline. Since the applications were received late, the Agency requested a revised application and would include the information in the Project's permanent records, although not in the Centennial Farm Book. With the 2014 project to reconnect with the original centennial farms, these additional farms were included as a separate addendum. The addendum farm information is current to 1989.

As part of the state's Centennial Celebration in 1989, the Washington State Department of Agriculture sponsored a program recognizing farms that had been in the same family for 100 years of more as centennial farms ... this brochure features three of the hundreds of centennial farms still farming today.