pro-choice

[Mullins, Bill]

pro-choice, OED has 1975

[letter to editor] "Abortion Backer Criticized" Walter Gates Jr.
Illinois | Chicago | The Herald | 1974-05-27 sec 3 p. 10 col 2.
"And finally you say you are pro-life but also pro-choice."

pro-life, OED has 1961 (general sense), 1978 (anti-abortion sense)
"Pro-life council denounces legal 'murder' " Gail Vaughan
West Virginia | Morgantown | The Dominion News | 1971-12-12 p. 1S, col
3.

"The council plans an active campaign, prolife rather than
anti-abortion, in the Morgantown area."

pro-lifer, OED has 1976

[letter to editor] "Says 'Life Threated'" Mary Christensen Illinois |
Chicago | The Herald | 1974-05-23 sec 6 p. 8 col 1.
"This gentleman also feels that pro-lifers labor under some mistaken
belief that pro-abortioners need only to be informed in order to realize
the error of their ways."