Astronaut
The first civilian in space was Valentina Tereshkova aboard Vostok 6 (she also became the first woman in space on that mission).
Tereshkova was only honorarily inducted into the USSR's Air Force, which did not accept female pilots at that time. A month later, Joseph Albert Walker became the first American civilian in space when his X-15 Flight 90 crossed the line, qualifying him by the international definition of spaceflight. Walker had joined the US Army Air Force but was not a member during his flight. 
The first people in space who had never been a member of any country's armed forces were both Konstantin Feoktistov and Boris Yegorov aboard Voskhod 1.
George Abbey
In 1983, he became director of the Flight Crew Operations Directorate, where he continued to be responsible for all space shuttle flight crews and JSC aircraft operations. 
Abbey would select the crews that flew during the early years of the space shuttle. As director of flight operations, he put America’s first woman in space when he assigned Sally Ride to the crew of 1983′s STS-7. 
Abbey was appointed deputy associate administrator for space flight at NASA Headquarters in Washington, D.C. in March 1988.