Jim Vadeboncoeur Jr. index card attached to online scanned version suggests Dan Zolnerowich as cover artist.
According to author Richard Arndt, who conducted interviews with Paul Norris Jr. on June 9, 2016, this story was the last to be drawn (featuring Yank and Doodle) by his father, Paul Norris. This interview is found in Alter Ego (TwoMorrows, 1999 series) #168 (March 2021). So art credits previously listed, Dan Zolnerowich (pencils) and Ann Brewster (inks ?), revised to Norris art by Craig Delich.
Last solo story for the Black Owl. Later on just appearing alongside Yank and Doodle.