[1] Morrill continued to work in horror, producing cover art for H. P. Lovecraft collections before turning her attention to science fiction and fantasy.
[1] Morrill created a number covers for books by such authors as Anne McCaffrey, Philip K. Dick, Isaac Asimov, Samuel R. Delany, Theodore Sturgeon, Piers Anthony and Madeleine L'Engle.
[9] Following the fall of Saddam Hussein in Iraq, art which appeared to be Morrill's original paintings King Dragon and Shadows Out of Hell were discovered hanging in one of his houses.
[2] The posthumous Paintings and Drawings of Rowena by Kim DeMulder was financed via a Kickstarter campaign, and has been nominated for a Locus Award for Best Illustrated and Art Book for 2023.
[13][14] In 2003, a Flash animation slideshow titled "Family Art Corner" was released anonymously, alleging that a woman named Jan "Tamar" McRae had plagiarized the work of many artists, including Morrill, for reproduction in proselytization tracts printed by the Children of God cult.