![](/files/01/54/39/f015439/public/00012.jpg) | Hammack, Jerry, 203-4
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![](/files/01/54/39/f015439/public/00012.jpg) | Haney, Paul, 101, 109, 202
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![](/files/01/54/39/f015439/public/00012.jpg) | Hayden, Tom, 156, 192
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![](/files/01/54/39/f015439/public/00012.jpg) | Hoard, Henry, 39
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![](/files/01/54/39/f015439/public/00012.jpg) | Hoffer, Eric, xv
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![](/files/01/54/39/f015439/public/00012.jpg) | Holmes, D. Brainerd, 89
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![](/files/01/54/39/f015439/public/00012.jpg) | Houston, 81-83
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![](/files/01/54/39/f015439/public/00012.jpg) | Humphrey, Hubert, 191, 192
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![](/files/01/54/39/f015439/public/00012.jpg) | Hungary, 46, 190
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![](/files/01/54/39/f015439/public/00012.jpg) | Iceland, 36, 42
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![](/files/01/54/39/f015439/public/00012.jpg) | I.M.U. (inertial measuring unit), 54-55, 223-24, 279
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![](/files/01/54/39/f015439/public/00012.jpg) | inertial measuring unit. See I.M.U.
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![](/files/01/54/39/f015439/public/00012.jpg) | Innis, Roy, 156
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![](/files/01/54/39/f015439/public/00012.jpg) | International Space Station, 261-62
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