Blackwell's, Ward's and Randall's islands and adjacent shores of East and Harlem Rivers : from 51st St. New York to Lawrence's Pt. / U.S. Coast and Geodetic Survey, F.M. Thorn, superintendent ; surveyed by E. Hergesheimer, assistant, 1885.; Maps of New York City and State / New York City / New York harbor
Hergesheimer, E., (Edwin) -- Surveyor; Thorn, F. M. -- Cartographer
<bdi><a href="https://en.wikipedia.org/wiki/en:New_York_Public_Library" class="extiw" title="w:en:New York Public Library"><span title="public library system in New York City">New York Public Library</span></a>
</bdi>