Help Preserve Prosser's History
The Prosser Historical Museum is a private 501(c)(3) non-profit corporation, registered within the State of Washington. The museum depends on the generous financial contributions of residents, visitors, and others to support its mission.
Prosser Historical Museum
P.O. Box 1407
Prosser, WA 99350
Please make checks payable to the Prosser Historical Museum
Donations of artifacts, photos and documents particular to the history of Prosser are warmly welcomed. Please contact Prosser Historical Museum Director/Curator Alys Means at (509) 786-3842 for additional information.