Little is known of Lt. Chalk at this time. He was flying in one of six 59 Sqn RE.8's shotdown by Jasta 11 on 13/04/1917. He was observer/gunner for Lt. McMillan-Horne They failed to return. They were flying RE.8 A4191.

Son of James and Ann Chalk, of 44, Dundurn Place, Winnipeg, Manitoba, Canada. 27 years of age at time of death. source