1856 Election - Details of By-Elections
| District (Vacancies) |
Nominations |
Polling |
Cause |
Elected Members |
| West Camden (Unc) |
16 Jun 1856 |
21 Jun 1856 |
Resignation - Other |
*James Macarthur |
| Northumberland Boroughs (Unc) |
16 Jun 1856 |
18 Jun 1856 |
Ministerial by-election |
*George Robert Nichols |
| Sydney Hamlets |
16 Jun 1856 |
17 Jun 1856 |
Ministerial by-election |
*Stuart Alexander Donaldson |
| Bathurst County |
16 Jun 1856 |
19 Jun 1856 |
Elected to two seats |
William Henry Suttor |
| Cumberland (North Riding) |
16 Jun 1856 |
19 Jun 1856 |
Ministerial by-election |
*John Bayley Darvall |
| Stanley Boroughs (Unc) |
23 Jun 1856 |
24 Jun 1856 |
Ministerial by-election |
*Thomas Holt |
| Northumberland Boroughs (Unc) |
05 Aug 1856 |
05 Aug 1856 |
Qualifications Committee |
Elias Carpenter Weekes |
| Cumberland (South Riding) |
18 Aug 1856 |
21 Aug 1856 |
Elected to two seats |
John Ryan Brenan |
| Sydney City (2) |
03 Sep 1856 |
04 Sep 1856 |
Ministerial by-election |
1 - *Charles Cowper
2 - *Robert Campbell |
| Cook and Westmoreland (Unc) |
05 Sep 1856 |
10 Sep 1856 |
Ministerial by-election |
*James Martin |
| Southern Boroughs (Unc) |
05 Sep 1856 |
10 Sep 1856 |
Ministerial by-election |
*Terence Aubrey Murray |
| Sydney Hamlets |
09 Oct 1856 |
10 Oct 1856 |
Ministerial by-election |
John Campbell |
| Parramatta |
10 Oct 1856 |
11 Oct 1856 |
Ministerial by-election |
*Henry Watson Parker |
| Murrumbidgee (Unc) |
14 Oct 1856 |
27 Oct 1856 |
Ministerial by-election |
*John Hay |
| Cumberland (North Riding) |
13 Oct 1856 |
16 Oct 1856 |
Ministerial by-election |
*John Bayley Darvall |
| Cumberland (South Riding) |
14 Oct 1856 |
17 Oct 1856 |
Ministerial by-election |
*William Montagu Manning |
| Cumberland (South Riding) (Unc) |
04 Nov 1856 |
07 Nov 1856 |
Qualifications Committee |
Stuart Alexander Donaldson |
| Sydney City |
29 Dec 1856 |
30 Dec 1856 |
Resignation - Financial difficulties |
William Bede Dalley |
| Argyle (Unc) |
13 Feb 1857 |
17 Feb 1857 |
LC Appointment |
Daniel Henry Deniehy |
| Cumberland (South Riding) |
09 Jun 1857 |
12 Jun 1857 |
Resignation - Other |
James Byrnes |
| Cook and Westmoreland (Unc) |
19 Sep 1857 |
26 Sep 1857 |
Ministerial by-election |
*James Martin |
| Sydney City (Unc) |
22 Sep 1857 |
24 Sep 1857 |
Ministerial by-election |
*Charles Cowper |
| Southern Boroughs (Unc) |
24 Sep 1857 |
01 Oct 1857 |
Ministerial by-election |
*Terence Aubrey Murray |
| Durham (Unc) |
25 Sep 1857 |
01 Oct 1857 |
Ministerial by-election |
*Richard Jones |
| Northumberland Boroughs |
03 Nov 1857 |
06 Nov 1857 |
Death |
James Dickson |
| Moreton, Wide Bay, Burnett and Maranoa (Unc) |
19 Nov 1857 |
17 Dec 1857 |
Resignation - Other |
Patrick Leslie |
| Cumberland (North Riding) |
08 Dec 1857 |
11 Dec 1857 |
Resignation - Other |
Thomas Whistler Smith |