Marjorie Merriweather Post is most often mentioned today as the person who built Mar-a-Lago. But she was a unique figure as a woman who helmed a huge corporation when she was still in her 20s in the early 20th century.
Research:

Unearthed! In July 2026, Part 1
41:36

SYMHC Classics: Raincoats
39:10

Behind the Scenes Minis: Shoes, Shoes, Shoes!
30:14