USA
William Shepherd
(William McMichael "Bill" Shepherd)
(Jul 26, 1949)
Astronaut 211
Astronaut of the USA 122
Spaceflights 4
Spaceflights
| No. | Launch | Orbiter | Duration |
| 1st | Dec 02, 1988 | Atlantis STS-27 | 4 d 9 h 5 m 37 s (105 h 5 m 37 s) |
| 2nd | Oct 06, 1990 | Discovery STS-41 | 4 d 2 h 10 m 4 s (98 h 10 m 4 s) |
| 3rd | Oct 22, 1992 | Columbia STS-52 | 9 d 20 h 56 m 13 s (236 h 56 m 13 s) |
| 4th | Oct 31, 2000 | Soyuz ТМ-31 - ISS-1 - Discovery STS-102 | 140 d 23 h 38 m 13 s (3362 h 38 m 13 s) |
| Cumulative time: | 159 d 7 h 50 m 7 s (3823 h 50 m 7 s) | ||
The first crew of the ISS Yuri Gidzenko, William Shepherd and Sergei Krikalev.
William Shepherd on board of the ISS.
Astronaut of the USA 121
Astronaut of the USA 123
Astronaut 210
Astronaut 212
2001 Antropos.