Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_24143253_4 ( length_of_marriage VARCHAR, name VARCHAR )

### Question ###
How long were Ray Bradbury and his wife married?

### Accurate SQL ###

SELECT length_of_marriage FROM table_24143253_4 WHERE name = "Ray Bradbury"