[The Australian Panther]

Thank you for this. Mark. Begs the question. Some sources give Tarpe Mills Miss Fury as the first superheroine. But both Miss Fury and Black Cat debuted in 1941. Black Cat in Pocket comics #1 August 1941.And Harvey also had Pat Parker the War Nurse who debuted in May 1941 and was a costumed hero - after the origin tale. So who was first? This is a good reference source for origin dates, but for some reason it doesn't have Miss Fury! https://firsts.comicbookinvest.com/
Link to the book: Speed Comics 26

[SuperScrounge]

And The Red Tornado (aka Ma Hunkel) gets ignored. 

Of course, there are those who argue that Fantomah was the first.

[Electricmastro]

Also, the Magician from Mars.

[Mr. Magnificent]

I have also seen the first super heroine nomination given to Invisible Scarlett O'Neil.