Voting: 30-05-1929
- British Reform and Women's (1 election)
- Communist (25 elections)
- Independent (8 elections)
- Independent Labour (3 elections)
- Independent Liberal (2 elections)
- Independent Unionist (8 elections)
- Irish Nationalist (1 election)
- Labour (560 elections)
- Labour Co-op (12 elections)
- Liberal (504 elections)
- Nationalist Party of Northern Ireland (3 elections)
- National Party of Scotland (2 elections)
- NI Liberal (6 elections)
- Plaid Cymru (1 election)
- Protestant and Progressive (1 election)
- Scottish Prohibition (1 election)
- Scottish Unionist (65 elections)
- Speaker (1 election)
- Temperance Unionist and Local Optionist (1 election)
- Unionist (513 elections)
- UUP (11 elections)
- Workers' (1 election)