Well done. Some thoughts.
a) Consult Neil Perry, who is in charge of CountyDurham.
b) Correct spelling of Count(r)y.
c) Reduce it to Durham Crematorium, Durham. Ther is no need for the County Durham as well.
c) make it a sub-category of County Durham Crematoria. When that shows in red, put in [[Category: County Durham]] and save.