CREATE TABLE table_73910 ("Institution" CLOB, "Location  ( all in Ohio ) " CLOB, "Nickname" CLOB, "Founded" FLOAT, "Type" CLOB, "Enrollment" CLOB, "Joined" FLOAT, "Left" FLOAT, "Current Conference" CLOB)

Which year did enrolled Gambier members leave?
SELECT MIN("Left") FROM table_73910 WHERE "Location (all in Ohio)" = 'Gambier'
SELECT MIN("Left") FROM "table_73910" WHERE "Location (all in Ohio)" = 'Gambier'