National Cheryl Day's strongest attested observance is British: newsroom posts in UK titles have marked it on 30 December in consecutive years, though the day is carried here as a United States observance. No founder, establishing act or first observance is documented.
What the reference books will and will not say
Behind the Name, drawing on Hanks and Hodges, states that the name "seems to have been popularized in America" by Walker. The word carrying that sentence is "seems", and no account found for this page goes further.


