If you haven't seen it already, British Film Institute has a few items from Edna Purviance's scrapbook online for fans to view. This scrapbook is the same one that once belong to Edna, but was bought with other items by a private London collector.
More about the scrapbook at these links.
London | London Re-visited.
Image of Charlie Chaplin and Edna Purviance from 'Behind the Scenes'. Mutual Film Company 1916.