Caption on image: "Public schools of Seattle"     Individual building captions: Denny, South Seattle, Olympic, T.T. Minor, Central, Mercer, Columbia, Offices of the Board of Education, Rainier.
<ul><li>Subjects (LCTGM): Schools--Washington (State)--Seattle</li></ul>
Assuming this is inclusive, it has to be before the B.F. Day School in Fremont opened in 1892.
<bdi><a href="https://en.wikipedia.org/wiki/en:Frank_La_Roche" class="extiw" title="w:en:Frank La Roche"><span title="American photographer, 1853-1934">Frank La Roche</span></a>
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<a rel="nofollow" class="external text" href="http://content.lib.washington.edu/larocheweb/index.html">Frank La Roche Photographs</a>