CREATE TABLE table_73156 ("School" TEXT, "City / Town" TEXT, "Website" TEXT, "Size" FLOAT, "Principal" TEXT, "Grades" TEXT, "IDOE Profile" TEXT)

How many websites are there for the school with 1939 students?
SELECT COUNT("Website") FROM table_73156 WHERE "Size" = '1939'
SELECT COUNT("Website") FROM "table_73156" WHERE "Size" = '1939'