October 28, 2025 | 10:59 am
★ Featured Event
Join us this December for the 2025 Sivinski Holiday Benefit—the Washington Trust’s annual celebration of local places, people, and preservation in our state. This year’s party will take place on Tuesday, December 9, from 5:30-8:30 pm at the Stimson-Green Mansion in Seattle....
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August 2025
We’re excited to debut a series of new events at the historic Stimson-Green Mansion this summer! Come experience this stunning historic setting and meet new friends at one of our Thursdays at the Stimson-Green Mansion events. Tickets start at just $10.
Read MoreAugust 2025
The Washington Trust and Historic Seattle are thrilled to announce their partnership on a new lecture series, “Historic Talks in Historic Buildings.” The series brings public programs into historic places across Seattle—places rich with history and meaning—while highlighting the voices and scholarship...
Read MoreDecember 9, 2025 | 5:30 pm
Join us this December for the 2025 Sivinski Holiday Benefit—the Washington Trust’s annual celebration of local places, people, and preservation in our state. This year’s party will take place on Tuesday, December 9, from 5:30-8:30 pm at the Stimson-Green Mansion in Seattle....
Read More
