<page_title> Harvard Bridge </page_title> <section_title> Conception </section_title> <table> <cell> Hugh O'Brien <col_header> Mayor of Boston </col_header> </cell> <cell> William E. Russell <col_header> Mayor of Cambridge </col_header> </cell> <cell> Leander Greeley <col_header> Third Commissioner </col_header> </cell> </table>
The mayors of Boston and Cambridge, Hugh O'Brien and William E. Russell, appointed Leander Greeley as the third commissioner.