According to the Internet source given below, Nelly Power [Ellen Maria Lingham] was an English singer and actress born in St Pancras.
She started performing in music halls aged 8 and appeared in Victorian burlesque and pantomime. She sang and performed impersonations developing a comic style as that of George Leybourne making her famous when just aged 15.
She first appeared on the legitimate London stage in 1868 in the pantomime version of Robinson Crusoe at the Surrey Theatre. Power then moved to the Vaudeville Theatre as principal "boy" in a number of burlesque plays by Robert Reece and Henry J. Byron. She was known nation-wide for her act caricaturing dandies with comic songs such as La-di-la (1880 - words: E. V. Paige; music: T. Vincent Davies. George Ware wrote The Boy I Love Is Up in the Gallery for her (1887).
She died untimely in London of pleurisy.

Websites:
	Nelly Power	Biography by wikipedia.org.

This list is derived from information provided by Monologues.co.uk which went down sometime in 2023.
The loss of this valuable resource is very sad and a mystery.