CREATE TABLE table_1515346_2 (margin_of_victory VARCHAR2, honoree_s_ VARCHAR2)

What was the margin of victory in the year when the honoree was Tommy Armour?
SELECT margin_of_victory FROM table_1515346_2 WHERE honoree_s_ = "Tommy Armour"
SELECT "margin_of_victory" FROM "table_1515346_2" WHERE "Tommy Armour" = "honoree_s_"