Curioser and curioser...
For a man with as much impact as Syd Glasso has had, the information available about him, and the extant photos of his flies, are relatively rare. In a google search for "Glasso Orange Heron" I came across the following article by Art Lingren in the newsletter of the BCFFF. It includes photographs of a number of his flies tied by Syd for Bob Taylor.
The Sol Duc Spey is tied with a teal throat.
Here's the link: