NASA
Nasa: Astronaut Biography: Alan Shepard
Biographical information with personal data, education, organizations, special honors, aviation experience, and NASA experience.
Other
Historic Wings: John Glenn Friendship 7
The story of America's first astronaut to orbit the earth during the Mercury Space program. After launching the program click on continue or on the numbers to learn about the story of the Mercury program and the first American to orbit...
Library of Congress
Loc: America's Story: Johnson's Task, Unify Space Program
Russia was ahead in the "space race" in 1961. In this article, the Library of Congress discusses how President Kennedy assigned Lyndon Johnson the task of uniting the different parts of the U.S. space program into NASA.
Wikimedia
Wikipedia: John Glenn
An open-source encyclopedic site containing the biography of astronaut John Glenn discusses his many accomplishments and contributions to the space program.
NASA
Kennedy Space Center: Project Mercury: America's First Space Explorers
Describes Project Mercury and its goals.