Goodwin competed in canoeing in the 1972 Munich games. He is set to be the first Olympian to travel to the edge of space, and the second person with Parkinson's disease.
Goodwin bought his ticket 18 years ago for $250,000, making him the fourth person to snatch a commercial seat on a Virgin Galactic flight, he told Sky News. He added that he "certainly did" worry it would never happen.
Schahaff is a health and wellness coach. She won two tickets in a raffle to raise funds for the nonprofit Space for Humanity. She's bringing her 18-year-old daughter, Mayers, who is a philosophy and physics student at the University of Aberdeen, Scotland.
They will be the first people from Antigua and Barbuda to take a spaceflight, according to Virgin Galactic.
The trio participated in a five-day readiness program in New Mexico, designed to prepare them "physically, mentally and spiritually" for the trip, according to the company.
Beth Moses, Chief Astronaut Instructor for Virgin Galactic, is set to join the passengers in the cabin of the VSS Unity for the flight. The company's pilots CJ Sturckow and Kelly Latimer are slated to fly the space plane.