The Explorers' Club, № MLIII

The Space Race—Astronaut Group 3 (the "Fourteen"), Part X
Russell Louis Schweickart (born 25 October 1935), Captain, U.S. Air Force—He flew Apollo 9 (Gumdrop & Spider, 1969); he experienced space adaptation sickness, yet completed an E.V.A. test of the Primary Life Support System backpack used by the Moonwalkers; he chaired the California Energy Commission & co-founded the Association of Space Explorers & the B612 Foundation.

Commentary: During Apollo 9, Schweickart & CDR Jim McDivitt conducted the first crewed test flight of an Apollo Lunar Module (LM-3, Spider), making them the first men to fly in a spacecraft not capable of atmospheric re-entry.

Schweickart's bout of space adaptation sickness led to him being a "guinea pig" for several months once back on the ground; he lost his spot in line for a Moon landing mission & was reassigned to Skylab. During the Space Shuttle era, & continuing unto the present day, N.A.S.A. learned that approximately half of all astronauts experience space adaptation sickness.

Bonus! Space Race Song o' the Day: The "Fourteen"—Rusty Schweickart
Norman Greenbaum, "Spirit in the Sky" from Spirit in the Sky (Space Cadet Mike Papa DSKY)

The Wayback Machine Tour of Rusty Schweickart
"The Explorers' Club," № DCCXXXV: The 51st Anniversary of Apollo 9, Part I
"The Explorers' Club," № DCCXXXVI: The 51st Anniversary of Apollo 9, Part II
"The Explorers' Club," № DCCXXXVII: The 51st Anniversary of Apollo 9, Part III

Semper exploro.