Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
List of Presidents of the New York Public Library
Table title:
New York Public Library
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > No. </th><th colspan=1 rowspan=1 > Image </th><th colspan=1 rowspan=1 > President </th><th colspan=1 rowspan=1 > Term </th><th colspan=1 rowspan=1 > Term length </th><th colspan=1 rowspan=1 > Ref(s) </th></tr>
<tr> <th colspan=1 rowspan=1 > 1 </th><td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > John Bigelow </td><td colspan=1 rowspan=1 > May 27, 1895 – December 19, 1911 </td><td colspan=1 rowspan=1 > 16 years, 6 months, 22 days </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 2 </th><td colspan=1 rowspan=1 > - </td><td class="highlighted"  colspan=1 rowspan=1 > John Lambert Cadwalader </td><td colspan=1 rowspan=1 > December 19, 1911 – March 11, 1914 </td><td colspan=1 rowspan=1 > 2 years, 2 months, 20 days </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 3 </th><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > George L. Rives </td><td colspan=1 rowspan=1 > May 13, 1914 – August 18, 1917 </td><td colspan=1 rowspan=1 > 3 years, 5 months, 4 days </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 4 </th><td colspan=1 rowspan=1 > - </td><td class="highlighted"  colspan=1 rowspan=1 > Lewis Cass Ledyard </td><td colspan=1 rowspan=1 > December 12, 1917 – January 12, 1932 </td><td colspan=1 rowspan=1 > 14 years, 1 month, 0 days </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 5 </th><td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Frank Polk </td><td colspan=1 rowspan=1 > April 13, 1932 – February 7, 1943 </td><td colspan=1 rowspan=1 > 10 years, 9 months, 25 days </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 6 </th><td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Morris Hadley </td><td colspan=1 rowspan=1 > February 8, 1943 – January 8, 1958 </td><td colspan=1 rowspan=1 > 14 years, 11 months, 0 days </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 7 </th><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > Gilbert W. Chapman </td><td colspan=1 rowspan=1 > January 8, 1959 – February 1, 1971 </td><td colspan=1 rowspan=1 > 12 years, 1 month, 0 days </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 8 </th><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > Richard W. Couper </td><td colspan=1 rowspan=1 > February 1, 1971 – July 1, 1981 </td><td colspan=1 rowspan=1 > 10 years, 5 months, 0 days </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 9 </th><td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Vartan Gregorian </td><td colspan=1 rowspan=1 > July 1, 1981 – December 1, 1989 </td><td colspan=1 rowspan=1 > 8 years, 5 months, 0 days </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 10 </th><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > Timothy S. Healy </td><td colspan=1 rowspan=1 > December 1, 1989 – December 30, 1992 </td><td colspan=1 rowspan=1 > 3 years, 0 months, 29 days </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 11 </th><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > Paul LeClerc </td><td colspan=1 rowspan=1 > December 1, 1993 – July 1, 2011 </td><td colspan=1 rowspan=1 > 17 years, 7 months, 0 days </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 12 </th><td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Anthony Marx </td><td colspan=1 rowspan=1 > July 11, 2011 – Present </td><td colspan=1 rowspan=1 > 7 years, 8 months and 11 days </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
Who were the first two presidents of the New York Public Library?
Answer:
John Bigelow served as the first president of the New York Public Library, followed by John Lambert Cadwalder.