One black-and white photo shows Heinrich Himmler on an idyllic family outing, holding his wife's hand while his blond, pigtailed daughter is picking flowers. Others show the SS Nazi leader feeding a little fawn or taking a bath at Lake Tegernsee near his home in Bavaria. The family-friendly, intimate scenes are part of a previously unseen collection of photos, recipe books and about 700 letters and notes believed to be written by Himmler, one of the Nazis most responsible for the Holocaust. Excerpts from the collection appeared in seven full pages of the German paper Welt am Sonntag on Sunday....