Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_31 (district VARCHAR, first_elected VARCHAR, incumbent VARCHAR)
### Question:
Which District has a First Elected of 1904 and an Incumbent of Duncan E. Mckinlay?
### Answer:
SELECT district FROM table_name_31 WHERE first_elected = 1904 AND incumbent = "duncan e. mckinlay"