Thanks to the diligent work of Roy Tennant and Mike Acker, 78 images of Sonoma Valley by Alexander Stark have been digitized and are availalble online at https://searchworks.stanford.edu/?f%5Bcollection%5D%5B%5D=9157694
Some are well known, and some not.
We thank archivist Franz Kunst and the rest of the staff at Special Collections for their kind assitance.
For more about Zan, read Frank Sternad’s wonderful article Stark for the San Francisco Post Card Club newsletter: ZanMonograph