As we’ve been reporting, Colman Pool in Lincoln Park marks its 75th anniversary tomorrow, having opened on July 4th, 1941. On Saturday, we shared a video with the story of the first two people to swim in the pool. Tonight: Local author and documentarian Lee O’Connor e-mailed WSB to announce he’s just released a short film about an ugly side of Colman Pool’s earliest years, and how it moved “from segregation to integration.”

Among the sources he cites is Shelley Sang-Hee Lee‘s book “Claiming the Oriental Gateway: Prewar Seattle and Japanese America,” excerpted here (click on the second passage to read more). O’Connor, a Seattle resident, is author of “Take Cover, Spokane: A History of Backyard Bunkers, Basement Hideaways, and Public Fallout Shelters of the Cold War.” He is currently working on a documentary based on it, while writing another book he says is “about abandoned underground missile silos in the Columbia Basin.” As mentioned in his video, Seattle Parks now maintain a non-discrimination policy; it’s on page 4 of this year’s brochure. The city’s overall policy, and how to file a complaint if you experience a violation, is here.