“Sea Dogs Biscuits are back!” the tweet stated. Sea Dogs spokesman Chris Cameron confirmed that the Sea Dog Biscuit will be available on Opening Day, April 6, and for the rest of the 2023 season.

In between, Chappel Brothers of Rockford, Ill., introduced the first canned dog food in the U.S., Ken-L-Ration. To push their product they began sponsoring a popular radio show in 1930, “The ...