Was she a late bloomer! I am about the age that she was when starting her astronomy career. This gives me immense hope that an entirely new (and possibly successful) chapter of my life can be started now.
I'm not finding another source confirming this presently.
Shoemaker is probably best known as one of the co-discoverers of the comet Shoemaker-Levy 9, which collided with Jupiter in July, 1994. It was the first time in modern astronomical history any such impact, let alone one of this magnitude was both predicted and observed.