Tracy Hickman, Don Marshall and Gil Gerard Tracy Hickman, Don Marshall and Gil Gerard at the Apollo Flight Director’s station, NASA. Post author By Tracy Hickman Post date August 12, 2013 No Comments on Tracy Hickman, Don Marshall and Gil Gerard By Tracy Hickman International & NYT Best-selling author of SF/Fantasy novels and games. View Archive → Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Please enter an answer in digits:eighteen − 10 = Δ