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:
Northampton South (UK Parliament constituency)
Table title:
Members of Parliament
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=2 rowspan=1 > Election </th><th colspan=1 rowspan=1 > Member </th><th colspan=1 rowspan=1 > Party </th></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > Feb 1974 </td><td class="highlighted"  colspan=1 rowspan=1 > Michael Morris </td><td class="highlighted"  colspan=1 rowspan=1 > Conservative </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > 1997 </td><td class="highlighted"  colspan=1 rowspan=1 > Tony Clarke </td><td class="highlighted"  colspan=1 rowspan=1 > Labour </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 2005 </td><td colspan=1 rowspan=1 > Brian Binley </td><td colspan=1 rowspan=1 > Conservative </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 2015 </td><td colspan=1 rowspan=1 > David Mackintosh </td><td colspan=1 rowspan=1 > Conservative </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 2017 </td><td colspan=1 rowspan=1 > Andrew Lewer </td><td colspan=1 rowspan=1 > Conservative </td></tr>
</table>
Question:
In what year did Labour's Tony Clarke defeat Morris after he held the Northampton South seat from its creation in 1974?
Answer:
Michael Morris, a Conservative, held the Northampton South seat from its creation in 1974 until 1997, when Labour's Tony Clarke defeated Morris.