Julius Kahn ผู้ดำรงตำแหน่งเขตใดที่เล็กกว่าปี 1906? ไม่จำเป็นต้องใช้ตารางทั้งหมด
What was the district Incumbent Julius Kahn was in that was smaller than 1906?It is not neccessary to use all the tables.
 table_name_74:  (district [ VARCHAR ] first_elected [ VARCHAR ] incumbent [ VARCHAR) ]
SELECT district FROM table_name_74 WHERE first_elected < 1906 AND incumbent = "julius kahn"