"Jack Duff Named Otters Captain". Canadian Hockey League. Erie Otters. September 19, 2019. Archived from the original on April 16, 2024. Retrieved April 16, 2024.
"Jack Duff Named Otters Captain". Canadian Hockey League. Erie Otters. September 19, 2019. Archived from the original on April 16, 2024. Retrieved April 16, 2024.