found: Only in dreams, 2008:t.p. (written & illustrated by Parker Jacobs)
found: OCLC, Jan. 5, 2010(hdg.: Jacobs, Parker; usage: Parker Jacobs)
found: Ranger Rick's story book, 2018:t.p. (illustrated by Parker Jacobs)
found: Instagram, Jan. 17, 2023:page for The Art of Parker Jacobs (Chief Creative - Yo Gabba Gabba! The Aquabats! Goon Holler, Ranger Rick)
found: Wikipedia, Jan. 17, 2023:(Parker LeGrand Jacobs, born July 17, 1975, in Ogden, Utah; an American artist, musician and former child actor; known for his work as an art director on the children's television series Yo Gabba Gabba!; author/illustrator of Only In Dreams)