Apollo 23 People
From Self Indulgence
Jill worked on the secret B-pan Project, an attempt by the U.S. government to understand apparently alien technology found at archeological sites in Central America. She knew Jack prior to 1969 through their work on the B-pan Project.
Ken Mattingly was on the Apollo 13 crew and trained with Jack.
Pultep was the agent trained and used by Tulghik to prevent the Olmecs from developing a technological civilization.