Plaid Cymru election results

Columns: Constituency | Candidate | Votes | % | Position
Aberdare | Trefor Beasley | 3,703 | 9.4 | 3 | Abertillery | Trefor Richard Morgan | 1,259 | 4.1 | 3 | Anglesey | J. Rowland Jones | 2,183 | 7.5 | 3 | Caernarvon | Robert E. Jones | 5,815 | 16.5 | 3 | Carmarthen | Jennie Eirian Davies | 3,835 | 7.8 | 3 | Conway | Ioan Bowen Rees | 3,019 | 7.8 | 3 | Gower | Chris Rees | 4,101 | 10.6 | 3 | Llanelly | David Eirwyn Morgan | 6,398 | 12.5 | 3 | Merioneth | Gwynfor Evans | 5,243 | 22.2 | 3 | Rhondda East | Noel Williams | 2,776 | 8.8 | 4 | Rhondda West | Glyn James | 4,424 | 15.3 | 2 | Wrexham | Elystan Morgan | 5,139 | 10.4 | 3

Example questions:
In which constituency was the Plaid Cymru candidate who finished in the worst position in the 1955 general election ? | When was the constituency where the Plaid Cymru candidate received the highest number of votes in the 1955 general election renamed ? | When was the constituency of the Plaid Cymru candidate with the lowest percentage of the vote in the 1955 general election abolished ? | When was the Plaid Cymru candidate who received the smallest number of votes in the 1955 general election born ? | When did the Plaid Cymru candidate who received the highest percentage of the vote in the 1955 general election die ?

Answers:
Rhondda East | 1999 | 1983 | 28 January 1914 | 21 April 2005