Katherine Thayer passed away this week. She was a major figure in the alternative process photographic community, and a great source of wisdom and knowledge when it comes to gum bichromate printing. Her loss will be felt around the world. I never met the great lady myself, but we did have several exchanges online and via email about alternative process printing, and I know that I miss the opportunity to have met her. Fortunately, her website is still up, and so even though she is gone, her knowledge does not vanish with her. It can be found at http://pacifier.com/~kthayer/.