Several collections are included in the $1 billion gift of art to the Seattle Art Museum this week. But there were some omissions. “A couple of the weightiest local collections were conspicuously absent from SAM’s list of donors: Bill and Melinda Gates’, and Paul Allen’s. Asked about those absences, Mimi Gates (who is married to Bill Gates Sr.) was cryptic. ‘When we have announcements, we will make them’.”