Leslie, if you read the earlier answers you will see that the minister who officiated at Thomas Shearman's burial was Charles Larom who was baptist Minster at Townhead. Larom published a history of the chapel in 1870 and that book is available in digitised format online.
Dave
I mistakenly read Hugh's reply first (it headed the list). It all made sense after I read the other replies. So I deleted my first response to Hugh--but you were too quick in reading it!