St. Mary's Roman Catholic Cemetery, By Kensal Green

Tomb of Mary Jane Seacole (23 November 1805 – 14 May 1881), St. Mary's Roman Catholic Cemetery, London

St. Mary's Roman Catholic Cemetery is located at Kensal Green in London, next to the famous and more celebrated Kensal Green Cemetery 

It has its own Catholic Chapel

It was established in 1858, and is the final resting place for more than 165,000 individuals of the Roman Catholic faith

During the first eight years of its existence some 12,500 burials took place, many of the Irish migrants of the Great Famine years finding their last resting place there

Mary Jane Seacole (23 November 1805 – 14 May 1881), is buried there,

She was a Jamaican-born woman of Scottish and Creole descent who set up a "British Hotel" behind the lines during the Crimean War. She provided succour for wounded servicemen on the battlefield. 

She was posthumously awarded the Jamaican Order of Merit in 1991. In 2004 she was voted the greatest black Briton

She converted to Catholicism about 1860

The Wikipedia entry for the cemetery provides a list of  the notables interred there. Others include 

Prince Louis Lucien Bonaparte (1813-1881) – Fourth son of Napoleon Bonaparte’s brother Lucien, philologist and politician

James Burns (1808–1871) Catholic publisher

Father Frederick Charles Copleston, SJ, CBE (10 April 1907 – 3 February 1994) Jesuit priest, philosopher, and historian of philosophy

Fr. Martin Cyril D'Arcy S.J. (1888–1976) Roman Catholic priest, philosopher of love, and a correspondent, friend, and adviser of a range of literary figures including Evelyn Waugh, Dorothy L. Sayers and W. H. Auden

Gilbert Charles Harding (5 June 1907 – 16 November 1960, Marylebone, London), English journalist and radio and television personality

Andrea Carlo Lucchesi, 1860-1925 sculptor

Fr Cyril Charles Martindale S.J. (1879 – 1963) – Jesuit priest, scholar & writer

John Hungerford Pollen (1820-1902) English writer on crafts and furniture.

Alexander Mark Rossi (1840 – 9 January 1916) British artist 

Fr. Herbert Henry Charles Thurston, S.J. (15 November 1856 – 3 November 1939) Jesuit writer and historian

Francis Sylvester Walker (1848–1916) Irish painter, illustrator and etcher.