Wikipedia has a reference manual which describes this scenario[1]. Lynn was prominently and publicly known for her post-transition work - though her IBM achievements are included, they are the minority of her career's work. She wasn't in the public eye at the time, so her former name is considered a privacy interest & not eligible for publishing to Wikipedia. If a person is notable & in the public eye before transitioning, their former names are then eligible to be listed.
[1] https://en.wikipedia.org/wiki/Wikipedia:Manual_of_Style/Gend...