Hello Hazel. Here they are:-
Sacred to the memory of Elizabeth, wife of Robert Dunn of Middleston, Co Durham, who departed this life 5/March/1825 aged 22 years.
This next one is in poor condition and unable to read the age. It is later than the date you mentioned but I thought it may be as easy to post because it may be of interest to others researching the Dunn name.
In loving memory of Robert Dunn, entered in to rest 18/January/1894 5? years.
This next one for Dent is included because of the same reason as above:-
In loving memory of William, the beloved husband of Sarah Ann Dent of Ravensford farm, Hamsterley, who died 26/June/1915 aged 70 years.
Also Mary Ann, daughter of the above, who died at Kays lea 4/March/1893 aged 19 years.
Also George, son of the above, who died at Howden le Wear 18/May/1914 age 33 years.
Also the above Sarah Ann Dent, who died 24/October/1918 aged 66 years.
Adam