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:
1969 Islington North by-election
Table title:

Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=2 rowspan=1 > Party </th><th colspan=1 rowspan=1 > Candidate </th><th colspan=1 rowspan=1 > Votes </th><th colspan=1 rowspan=1 > % </th><th colspan=1 rowspan=1 > ± </th></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > Labour </td><td class="highlighted"  colspan=1 rowspan=1 > Michael O'Halloran </td><td colspan=1 rowspan=1 > 7,288 </td><td colspan=1 rowspan=1 > 49.2 </td><td colspan=1 rowspan=1 > −10.2 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > Conservative </td><td class="highlighted"  colspan=1 rowspan=1 > Andrew Pearce </td><td colspan=1 rowspan=1 > 5,754 </td><td colspan=1 rowspan=1 > 38.9 </td><td colspan=1 rowspan=1 > +8.2 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Liberal </td><td colspan=1 rowspan=1 > Eric G. Thwaites </td><td colspan=1 rowspan=1 > 1,514 </td><td colspan=1 rowspan=1 > 10.2 </td><td colspan=1 rowspan=1 > +0.4 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Independent Socialist </td><td colspan=1 rowspan=1 > Austin Williams </td><td colspan=1 rowspan=1 > 245 </td><td colspan=1 rowspan=1 > 1.7 </td><td colspan=1 rowspan=1 > N/A </td></tr>
<tr> <th colspan=3 rowspan=1 > Majority </th><td class="highlighted"  colspan=1 rowspan=1 > 1,534 </td><td colspan=1 rowspan=1 > 10.4 </td><td colspan=1 rowspan=1 > 18.4 </td></tr>
<tr> <th colspan=3 rowspan=1 > Turnout </th><td colspan=1 rowspan=1 > 14,801 </td><td colspan=1 rowspan=1 > 32.8 </td><td colspan=1 rowspan=1 > 21.43 </td></tr>
<tr> <th colspan=3 rowspan=1 > Registered electors </th><td colspan=1 rowspan=1 > 45,077 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=2 rowspan=1 > Labour hold </td><th colspan=1 rowspan=1 > Swing </th><td colspan=1 rowspan=1 > −9.2 </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
How many votes did the Labour Party candidate, Michael O'Halloran, use in winning the 1969 Islington North by-election over the Conservative candidate Andrew Pearce?
Answer:
The 1969 Islington North by-election was a victory for the Labour Party candidate, Michael O'Halloran, who won with a majority of 1,534 votes over the Conservative candidate Andrew Pearce.