CREATE TABLE table_74031 ("No. in series" FLOAT, "No. in season" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT, "Production code" TEXT, "U.S. viewers  ( millions ) " TEXT)

How many were the US viewers (in millions) of the episode that was written by Gordon C. Lonsdale?
SELECT "U.S. viewers (millions)" FROM table_74031 WHERE "Directed by" = 'Gordon C. Lonsdale'
SELECT "U.S. viewers (millions)" FROM "table_74031" WHERE "Directed by" = 'Gordon C. Lonsdale'