Some interesting speculations here, but clearly some people dont know their Bible too well.

To horse! cried Pharao, and swept the chariots and horsemen on into the sea; and the Lord brought the waters of the sea back over them, while the sons of Israel went through the midst of it dry-shod.

Hereupon Mary the prophetess, Aaron's sister, went out with a tambour in her hand, and all the women-folk followed her, with tambour and with dances, and took up her refrain, A psalm for the Lord, so great and so glorious; horse and rider hurled into the sea. (Exodus 15, 19-21)

That's from the Knox translation. Most versions seem to call her Miriam - which is the same name.