Website/Catalog  (2021)  
 
Accessed 05/04/2021, The Green Mount Cemetery (Baltimore, Maryland) web site:
https://www.greenmountcemetery.com/greenmount-cemetery-features-nature.html

James Pentland: Green Mount’s First Gardener:

...One of Pentland’s legacies is a rose which he hybridized while serving as head gardener. In the words of Stephen Scanniello, a long time rose expert and former curator of the Cranford Rose Garden at the Brooklyn Botanic Garden:
“The name, "Green Mount Red" is a study name, meaning that we don't know the true, or original, name of this rare rose. Only two plants of this small–flowered red rose are known to exist today. The oldest grows in Baltimore’s Green Mount Cemetery; the other is newly planted on the grave of Mr. George F. Harison in Trinity Church Cemetery. Harison’s plant was grown from cuttings taken from Green Mount.  It’s possible that this rose may be the long-lost 1854 variety ‘Beauty of Greenmount’ [sic], a red shrub rose created by James Pentland while he was the head gardener of Green Mount Cemetery. Pentland’s rose was included in the inventory of 19th century New York nurseries.
 

Newsletter  (May 2013)  Page(s) 3.  
 
His first rose was ‘Beauty of Greenmount’ in 1854, a hybrid setigera. Today, a found rose under the study name of “Green Mount Red,” growing in that cemetery, as well as another on the grave of George F. Harison of ‘Harison’s Yellow,’ is speculated to be the same rose.