Original sentence: John Ostrander and Timothy Truman are credited as co-creators of the character, although Ostrander had begun developing Grimjack with artist Lenin Delsol before Truman's arrival on the project (according to Ostrander's own text piece in GJ #75)
Edited sentence: He was created by John Ostrander, who very generously awarded co-creator credit to Timothy Truman, despite the fact that a great deal of development, including visuals by Lenin Delsol, had been done before Truman's arrival on the project (according to Ostrander's own text piece in GJ #75)