^"The Pipes of Pan (1923)". Archived from the original on 21 September 2017.
^"Squibs, MP (1924)". Archived from the original on 8 September 2017.
^"Engrossed in our first production (Woman to Woman), we had made no preparations for the second. Caught on the hop, we rushed into production with a story called The White Shadow. It was as big a flop as Woman to Woman had been a success."—Michael Balcon, 1969, in Alfred Hitchcock: A Life in Darkness and Light by Patrick McGilligan (pg 754)