Hawke is "The Grandfather of Therapeutic Gaming" - Adam Johns, Game to Grow, Executive Director

"...the Grandfather of Therapeutic Gaming. He has been tracking and involved in the therapeutic and educational application of role-playing games longer than anyone else.” –Adam Johns, Game to Grow, Executive Director, Lead Facilitator. (February 23rd, 2018).

Hawke Robinson is founder of many organizations, two key ones including RPG Research and RPG Therapeutics.

Longer version in a referal to someone else with Hawke Robinson CC'd (and permission granted to quote Adam).

..."the Grandfather of Therapeutic Gaming. He has been tracking and involved in the therapeutic and educational application of role-playing games longer than anyone else. He runs the websites rpgresearch.com and rpgtherapeutics.com, and has a unique perspective on applied roleplaying games with a background in recreational therapy. Additionally, more directly related to your program, he has designed several RPGs building specific skills, and has run LARP based summer camps that focus on skill building, in the Pacific Northwest.” –Adam Johns, Game to Grow, Executive Director, Lead Facilitator. (February 23rd, 2018).