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:
| Title | Studio | Role | Leading lady | Director |
| --- | --- | --- | --- | --- |
| The Lucky Texan | Mono | Jerry Mason | Barbara Sheldon | R.N. Bradbury |
| West of the Divide | Mono | Ted Hayden | Virginia Browne Faire | R.N. Bradbury |
| Blue Steel | Mono | John Carruthers | Eleanor Hunt | R.N. Bradbury |
| The Man from Utah | Mono | John Westen | Polly Ann Young | R.N. Bradbury |
| Randy Rides Alone | Mono | Randy Bowers | Alberta Vaughn | Harry L. Fraser |
| The Star Packer | Mono | John Travers | Verna Hillie | R.N. Bradbury |
| The Trail Beyond | Mono | Rod Drew | Verna Hillie | R.N. Bradbury |
| The Lawless Frontier | Mono | John Tobin | Sheila Terry | R.N. Bradbury |
| 'Neath the Arizona Skies | Mono | Chris Morrell | Sheila Terry | Harry Fraser |
Question:
Who directed the movie when John Wayne played the role of John Travers?
Answer:
R.N. Bradbury