"The Lowell Sun in Massachusetts, for example, carried an article in 1948 about Grossinger’s in the Catskills, reporting that, 'The bagel-and-lox crowd was in stitches.'" (Source, Marx 2017, “Eating Up: The Origins of Bagels and Lox.”)

"I didn’t really grow up what you would call religious, but we always had a family tradition of eating bagels with lox and cream cheese on Sundays." (source)