Tracy (vicinity), California. Missouri family of five who are seven months from the drought area on U.S. Highway 99. "Broke, baby sick, and car trouble!" (LOC description) 
N.B. The sign just visible in front of the truck confirms the <a href="//commons.wikimedia.org/wiki/File:Depression_migrants_CA_truck.jpg" title="File:Depression migrants CA truck.jpg">other version on the LoC site</a> is correct, not <a href="//commons.wikimedia.org/wiki/File:%22Broke,_baby_sick,_and_car_trouble!%22_-_Dorothea_Lange%27s_photo_of_a_Missouri_family_of_five_in_the_vicinity_of_Tracy,_California_-_Original.tif" title="File:&quot;Broke, baby sick, and car trouble!&quot; - Dorothea Lange's photo of a Missouri family of five in the vicinity of Tracy, California - Original.tif">the mirror image version</a> seen in the original scan this is based on.
<bdi><a href="https://en.wikipedia.org/wiki/en:Dorothea_Lange" class="extiw" title="w:en:Dorothea Lange"><span title="American photojournalist (1895-1965)">Dorothea Lange</span></a>
</bdi>
This image  is available from the United States <a href="//commons.wikimedia.org/wiki/Library_of_Congress" title="Library of Congress">Library of Congress</a>'s <a rel="nofollow" class="external text" href="//www.loc.gov/rr/print/">Prints and Photographs division</a><br> under the digital ID <a rel="nofollow" class="external text" href="http://hdl.loc.gov/loc.pnp/fsa.8b38633">fsa.8b38633</a>.<br><small>This tag does not indicate the copyright status of the attached work. <span style="white-space:nowrap">A normal <a href="//commons.wikimedia.org/wiki/Special:MyLanguage/Commons:Copyright_tags" title="Special:MyLanguage/Commons:Copyright tags">copyright tag</a> is still required.</span> <span style="white-space:nowrap">See <a href="//commons.wikimedia.org/wiki/Special:MyLanguage/Commons:Licensing" title="Special:MyLanguage/Commons:Licensing">Commons:Licensing</a>.</span></small>