Four letters to the editor by an anonymous Reader, criticizing Leigh's book "Clipt Wings" accompanied by a note to a Dr. de Liebing hoping to have the galley-proofs reviewed. 4027.8512-.1. William R. Leigh Manuscript Collection. 20th century. Tulsa: Gilcrease Museum, https://collections.gilcrease.org/object/40278512-1 (08/02/2018).