Description: [caption id="" align="aligncenter" width="425" caption="Image of Merle Crisler Foshag and her husband William F. Foshag, Curator in the U.S. National Museum's Department of Geology, The two are standing amid flowers, while on Foshag's scientific expedition to Tepoztlán, Mexico, 1929, by Unidentified photographer, Photographic print, Smithsonian Institution Archives, Record