CREATE TABLE table_36104 ("Date" TEXT, "Visitor" TEXT, "Score" TEXT, "Home" TEXT, "Record" TEXT)

Who was the visitor in the game that led to a 39-20-6 record?
SELECT "Visitor" FROM table_36104 WHERE "Record" = '39-20-6'
SELECT "Visitor" FROM "table_36104" WHERE "Record" = '39-20-6'