Hello Lazarus. Here is the one from St Helen, West Auckland.
This one has been damaged/weathered so only part is readable
:- In memory of Thomas Langstaff late of West Auckland who departed this life 1st day of February

?? age 49 years.
Also William Langstaff who died

? 1805 aged

??.
Also Mary Langstaff wife of Michael Langstaff who died June/24/1810 (could be 1840) age 41 years.
Also Michael Langstaff who died April/18/1850 age 85 years.
Here is another Langstaff from Hamsterley, St James, three or four miles away that may be of interest.
:- To the memory of George Langstaff of Butterknowle who died October/13/1787 age 65 years.
Also of Elizabeth his second wife who departed this life May/17/1806 age 78 years.
Adam