On Redcross Way, Southwark in the shadow of The Shard and London Bridge Station you will find Cross Bones Burial Ground. The site contains up to 15,000 people believed to have been buried up to 1863 with its earliest mention in 1598. It served as a paupers graveyard for a long time within the area known as “The Mint” - one of the capitals poorest and most violent areas.
It is also the resting place of The Winchester Geese, medieval sex workers licensed by the Bishop of Winchester who worked the brothels of The Liberty of the Clink, which lay outside the law of the City of London. This site has in depth detail.
The eastern part was dug up in the 1990s during work for the Jubilee Line extension. The area is now dedicated to ‘the outcast dead’ and serves as a garden of remembrance. At 19:00 on the 23rd of each. I think a serve is performed.
John Stow mentioned a “Single Woman’s churchyard” in his book A Survey of London (1598) and it was mentioned again in a history of St. Saviours, Southwark (1795). William Taylor also mention per it in 1833. The courtyard closed in 1853 due to being “overcharged with dead” which caused concerns over public health and public decency. Excavations by the Museum of London Archaeology Service from 1991 to 1998 state that graves were found with bodies piled one on top of another. Tests listed causes of death that included smallpox, tuberculosis, Paget’s disease, osteoarthritis and Vitamin D deficiency.
A 1992 dig found 148graves dating from 1800 to 1853 with over one third of the bodies being perinatal (between 22 weeks gestation and seven days after birth) and a further 11 percent were under one year old. The adults were mostly women aged 36 and under.
The site is not always open to the public as it relies on volunteers so check before visiting. You’ll see from the photos that no stones or personalised monuments exist but sculptures, statues, shrines and pieces of art are there to honour the dead. The fence area contains ribbons with names of some of the supposed people buried at the site to honour their memory.
There is more information at their website.