Among the bands to play at The Casbah was the Beatles, for whom her son Pete Best was a drummer at the time.
Mona also had two other sons, Rory (b.
1945), and Vincent "Roag" Best (b.
1962).
It was later confirmed that Roag's father was The Beatles' associate, Neil Aspinall, although he was not registered as the father on Roag's birth certificate.
After moving to Liverpool from India, where she was born, Mona used gambling winnings to buy a house in 1957.
Mona later opened The Casbah Coffee Club in the cellar of the house.
It was planned as a members-only club for her sons and their friends.
The club was often referred to as The Casbah Club, or The Casbah.
In 2006, the property was accorded a Grade II Heritage listing.
Mona died in 1988, after a heart attack following a long illness.