Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Role | D'Oyly Carte 1920 Tour | D'Oyly Carte 1930 Tour | D'Oyly Carte 1939 Tour | D'Oyly Carte 1945 Tour | D'Oyly Carte 1950 Tour |
| --- | --- | --- | --- | --- | --- |
| Lieutenant | Sydney Granville | Joseph Griffin | Leslie Rands | Leslie Rands | Donald Harris |
| Col. Fairfax | Derek Oldham | Charles Goulding | John Dean | John Dean | Leonard Osborn |
| Sgt. Meryll | Darrell Fancourt | Darrell Fancourt | Darrell Fancourt | Darrell Fancourt | Darrell Fancourt |
| Leonard Meryll | Hugh Enes Blackmore | John Dean | Thomas Hancock | Herbert Garry | Thomas Hancock |
| Jack Point | Henry Lytton | Henry Lytton | Martyn Green | Grahame Clifford | Martyn Green |
| Wilfred | Leo Sheffield | Sydney Granville | Sydney Granville | Richard Walker | Richard Watson |
| 1st Yeoman | James Turnbull | Herbert Aitken | Leonard Osborn | Rhys Thomas | Frederick Sinden |
| 2nd Yeoman | Henry Blain | Richard Eaton | Hugh Rowlands | Hilton Layland | Eric Thornton |
| 1st Citizen | Allen Morris | C. William Morgan | C. William Morgan | C. William Morgan | Roy Roser |
| 2nd Citizen | Harry Arnold | T. Penry Hughes | Richard Walker | Wynn Dyson | Peter Pratt |
| Elsie | Sylvia Cecil | Winifred Lawson | Helen Roberts | Helen Roberts | Muriel Harding |
| Phoebe | Catherine Ferguson | Marjorie Eyre | Marjorie Eyre | Marjorie Eyre | Joan Gillingham |
| Dame Carruthers | Bertha Lewis | Bertha Lewis | Evelyn Gardiner | Ella Halman | Ella Halman |
| Kate | Elsie Griffin | Muriel Davies | Margery Abbott | Margaret Mitchell | Deidree Thurlow |
Question:
D'Oyly Carte 1939 Tour of richard walker involves what D'Oyly Carte 1945 Tour?
Answer:
Wynn Dyson