not sure which Batley family member is listed here
This is a Cathy pilot's log-book page for a Macau-Kai Tak flight on 2 July 1948.
The pilot was Dale Cramer whose Cathy Catalina was later high-jacked in an attempt seize the gold it was carrying on 16 July 1948. All on board were lost except one high-jacker who survived
the de Costa listed under the Batley name was probably Delca de Costa an air hostess who lost her life in the high-jacking crash