The "<a href="https://en.wikipedia.org/wiki/Mercury_Seven" class="extiw" title="en:Mercury Seven">en:Mercury Seven</a>" astronauts pose with an <a href="https://en.wikipedia.org/wiki/Atlas_ICBM" class="extiw" title="en:Atlas ICBM">Atlas</a> model in 1959. 
Front row, left to right: <a href="https://en.wikipedia.org/wiki/Gus_Grissom" class="extiw" title="en:Gus Grissom">en:Gus Grissom</a>, <a href="https://en.wikipedia.org/wiki/Scott_Carpenter" class="extiw" title="en:Scott Carpenter">en:Scott Carpenter</a>, <a href="https://en.wikipedia.org/wiki/Deke_Slayton" class="extiw" title="en:Deke Slayton">en:Deke Slayton</a> and <a href="https://en.wikipedia.org/wiki/Gordo_Cooper" class="extiw" title="en:Gordo Cooper">Gordon Cooper</a>.  Back row: <a href="https://en.wikipedia.org/wiki/Alan_Shepard" class="extiw" title="en:Alan Shepard">en:Alan Shepard</a>, <a href="https://en.wikipedia.org/wiki/Wally_Schirra" class="extiw" title="en:Wally Schirra">en:Wally Schirra</a> and <a href="https://en.wikipedia.org/wiki/John_Glenn" class="extiw" title="en:John Glenn">en:John Glenn</a>.
NASA
<a rel="nofollow" class="external text" href="https://archive.org/details/C-1959-51734">Archive.org</a>