"In October, the nine justices sat through the arguments again. When they met to discuss the cases, there was a surprise. Powell, the soft-spoken Virginian who was new to the court, firmly supported a woman’s right to abortion. He urged Blackmun to say it directly rather than attack the laws as vague. For Powell, the issue was personal: When he was a lawyer in Richmond, Va., a young man came to him in despair. His pregnant girlfriend had tried to abort her fetus with his help, and she had bled to death. Powell went to the authorities to explain what happened. Thereafter, he was determined to see abortion made safe and legal. Suddenly, there were six solid votes to strike down the Texas and Georgia laws, and Blackmun had the backing to write a broader opinion in favor of a right to abortion. The liberals, who had worried about the delay, found they had a stronger hand, and Burger found himself with no room to maneuver."
January 1, 1970
https://en.wikiquote.org/wiki/Roe_v._Wade