Alice Rose Provensen and Martin Provensen (1916–1987) were an American couple who illustrated more than 40 children's books together, 19 of which they also wrote and edited. According to Alice, "we were a true collaboration. Martin and I really were one artist."
Excerpt from Wikipedia, available under CC BY-SA 4.0.

The Provensen Book of Fairy Tales
1972
ISBN 9780001381698
The Art of Alice & Martin Provensen
2021
ISBN 9781797209586
The Art of Alice and Martin Provensen
2022
ISBN 9781797214955