If I recall correctly, Richard Vandersteen's daughter is responsible for constructing his amplifiers. Alive and kicking and doing a hell of a job.
Jozefina Lichteneggerova - European Audio Team
I believe she is a Principle of the company (Tubes, turntables, etc.).
Also, Wilma Cozart Fine. Responsible, with her husband, for Mercury Living Presence recordings.
Wilma Cozart Fine: The Muse of Mercury | The Absolute Sound