Ezra Jack Keats (born March 11, 1916, died May 6, 1983), author of The Snowy Day, the easel artist and one of the greatest children's literature authors and illustrators of the 20th Century
No it is a fictional song-story like Wenceslaus and should not be played in a church. On the other hand I have heard- Do you Hear what I Hear? in churches- and that takes some liberties with the...