Dave & Rosemary Cowan Interview
https://www.youtube.com/watch?v=VdxyKdtTBfg Margaret interviews her aunt Rosemary (Hewson) Cowan and uncle Dave Cowan on August 29, 2019.
Rosemary (Hewson) & Dave Cowan (1971)
Rosemary & Dave Cowan on their wedding day. March 26, 1971. See al P. 723 of the By Sea, By Land book.