I have placed a mini bio on John Squire on Edna's site. Lita Hill will be talking more about Jack in the coming video. Much more will be in the biography we are working on about Edna Purviance.
UPDATE January 2007: Jack and Edna's Personal Films. These discovered films document Jack's travels as a pilot with Pan American Airlines from the late 1920s before meeting Edna Purviance, to the early 1940s with footage of Edna and Jack at their South America home.