Quaker 'ministers' were not what is generally thought of as ministers, and George Fox, who started the Quaker faith, believed that those who "preached for hire" (e.g. were paid) and those whose preaching did not derive from the proper source were "priests" (a negative term in Quaker thinking). Minister were not created by humans. A Quaker meeting could not appoint someone a minister -it could only "acknowledge" that a certain man or womanWAS a minister...and a local meeting could have several ministers, male and female, or one or none. I looked in Hinshaws Quaker encyclopedia and only saw 2 meetings in Wayne Co, NC that might fit the bill...the Contentnea and the Neuse...all others are too late for your 1780 date.However, Contentnea meetings records, while begun in 1774, were lost pre 1814....and the Neuse records only date to 1841.Knowing these names might permit you to see if you can find records for these meetings NOT in Hinshaw. Where did you find Thomas mentioned as a Quaker Minister?Sometimes where things are found can be a clue as to where to look.