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:
| Round | Pick | Player | Nationality | College |
| --- | --- | --- | --- | --- |
| 1.0 | 15.0 | John Hummer | United States | Princeton |
| 2.0 | 24.0 | Cornell Warner | United States | Jackson State |
| 3.0 | 43.0 | Chip Case | United States | Virginia |
| 4.0 | 58.0 | Ervin Polnick | United States | Austin State |
| 5.0 | 77.0 | Robert Moore | United States | Central State |
| 6.0 | 92.0 | Doug Hess | United States | Toledo |
| 7.0 | 111.0 | Cliff Shegogg | United States | Colorado State |
| 8.0 | 126.0 | Larry Woods | United States | West Virginia |
| 9.0 | 145.0 | Larry Duckworth | United States | Henderson State |
| 10.0 | 160.0 | Joe Taylor | United States | Dillard |
| 11.0 | 177.0 | Dick Walker | United States | Wake Forest |
Question:
Which nationality is Dick Walker?
Answer:
United States