Adelita, the song is a memorial to all of the women who followed their men into the battles of the Mexican Revolutions. They cooked, washed, cared for the wounded and prepared the dead, and some even fought alongside their men. There were few, if any, nurses or medical personnel with the revolutionaries, most of whom were from the poor and peon class of Mexico.
There were more than one revolt; mostly forgotten today is the 19th c. struggle against Maxmillian, put on the throne by Napoleon III of France, and the rise of Juarez and the fall of the short-lived kingdom. Most of us think of the more recent revolution because of films about Emilio Zapata and Francisco Villa, and this is the revolution in which 'Adelita' took part.

The song may or may not be about a real Adelita, but she and her companions are remembered with love. A good name!