CREATE TABLE table_69534 ("School" TEXT, "Location" TEXT, "Mascot" TEXT, "# / County" TEXT, "Year Joined" FLOAT, "Year Left" FLOAT, "Conference Joined" TEXT)

When was the first year when Fowler joined?
SELECT MIN("Year Left") FROM table_69534 WHERE "Location" = 'fowler'
SELECT MIN("Year Left") FROM "table_69534" WHERE "Location" = 'fowler'