From the Wikipedia page [1]
Abney Park in Stoke Newington, in the London Borough of Hackney, is a historic parkland originally laid out in the early 18th century by Lady Mary Abney and Dr. Isaac Watts, and the neighbouring Hartopp family. In 1840 it became a non-denominational garden cemetery, a semi-public park arboretum, and an educational institute, which was widely celebrated as an example of its time. Abney Park is one of the Magnificent Seven London cemeteries. A total number of 196,843 burials took place here as of the year 2000. It is a Local Nature Reserve.
The website is [2].