From the materials for the <a href="https://en.wikipedia.org/wiki/Alaska-Yukon-Pacific_Exposition" class="extiw" title="en:Alaska-Yukon-Pacific Exposition">Alaska-Yukon-Pacific Exposition</a> of 1909, held in Seattle. Set of pictures (somewhat oddly/artistically arranged), captioned "Scenes Among the San Juan Islands. These islands are undoubtedly the most beautiful in America, and will someday be the playground of the United States."
Photos by J.A. McCormick. Scanned by the Seattle Public Library.
<i>The Argus;; Alaska-Yukon-Pacific Exposition special issue, p. 41. <a rel="nofollow" class="external autonumber" href="http://cdm200301.cdmhost.com/cdm4/browse.php">[1]</a> (see filename for exact location)</i>