CREATE TABLE table_name_74 (section VARCHAR(255), season VARCHAR(255), level VARCHAR(255), position VARCHAR(255))
Which section has a level of Tier 3, is in the 6th position, and is in the 1937-38 season?
    
SQL: SELECT section FROM table_name_74 WHERE level = "tier 3" AND position = "6th" AND season = "1937-38"