Not sure if I mentioned this before, but there is an excellent book that has a significant portion devoted to coming out at work and transitioning. It is:
Reflections From Both Sides of the Class Ceiling: Finding My True Self In Corporate America By Stephanie Battaglino
She chronicles her early life, through college and then into a career. Eventually she transitions in place when she was working at New York Life in New York City. These days she is retired and living 2 towns over from me in Palm Desert.