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:
South West Norfolk (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 colspan=1 rowspan=1 > 1885 </td><td colspan=1 rowspan=1 > William Tyssen-Amherst </td><td colspan=1 rowspan=1 > Conservative </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 1892 </td><td colspan=1 rowspan=1 > Sir Thomas Hare </td><td colspan=1 rowspan=1 > Conservative </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 1906 </td><td colspan=1 rowspan=1 > Richard Winfrey </td><td colspan=1 rowspan=1 > Liberal </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 1923 </td><td colspan=1 rowspan=1 > Alan McLean </td><td colspan=1 rowspan=1 > Conservative </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > 1929 </td><td colspan=1 rowspan=1 > William Benjamin Taylor </td><td class="highlighted"  colspan=1 rowspan=1 > Labour </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > 1931 </td><td colspan=1 rowspan=1 > Alan McLean </td><td colspan=1 rowspan=1 > Conservative </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 1935 </td><td colspan=1 rowspan=1 > Somerset de Chair </td><td colspan=1 rowspan=1 > Conservative </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > 1945 </td><td class="highlighted"  colspan=1 rowspan=1 > Sidney Dye </td><td class="highlighted"  colspan=1 rowspan=1 > Labour </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 1951 </td><td colspan=1 rowspan=1 > Denys Bullard </td><td colspan=1 rowspan=1 > Conservative </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 1955 </td><td colspan=1 rowspan=1 > Sidney Dye </td><td colspan=1 rowspan=1 > Labour </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 1959 (b) </td><td colspan=1 rowspan=1 > Albert Hilton </td><td colspan=1 rowspan=1 > Labour </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > 1964 </td><td colspan=1 rowspan=1 > Paul Hawkins </td><td class="highlighted"  colspan=1 rowspan=1 > Conservative </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 1987 </td><td colspan=1 rowspan=1 > Gillian Shephard </td><td colspan=1 rowspan=1 > Conservative </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 2005 </td><td colspan=1 rowspan=1 > Christopher Fraser </td><td colspan=1 rowspan=1 > Conservative </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 2010 </td><td colspan=1 rowspan=1 > Elizabeth Truss </td><td colspan=1 rowspan=1 > Conservative </td></tr>
</table>
Question:
Who has held the South West Norfolk since 1964 and when did Labour hold it in the past?
Answer:
The South West Norfolk has been held by Conservatives since 1964 but Labour first held it from 1929 to 31, and Sidney Dye won it for Labour in 1945.