CREATE TABLE table_11531 ("Home team" CLOB, "Home team score" CLOB, "Away team" CLOB, "Away team score" CLOB, "Venue" CLOB, "Crowd" FLOAT, "Date" CLOB)

How many people were in attendance at Glenferrie Oval?
SELECT MIN("Crowd") FROM table_11531 WHERE "Venue" = 'glenferrie oval'
SELECT MIN("Crowd") FROM "table_11531" WHERE "Venue" = 'glenferrie oval'