--the original pension application file is available on the pay sites ancestry.com and fold3.com, both of which have free trial-period offers, or may be accessible at your local library free of charge.The pension application may also be available to you at the HeritageQuest site through your local or State Library.
Many NC men who survived long enough to claim pensions could not prove their service because most Regimental paperwork after 1779 does not exist for the captured Regiments.
There are a very few book sources that indicate some sources are worth pursuing, however, such as manuscript collections in the NC State Archives.
There is a book, Burns, Annie Walker: _Abstract of pensions of North Carolina soldiers of the Revolution, War of 1812 & Indian Wars_; Washington, D.C.:1960, which abstracts at least two pension applications for men who claimed service under Capt. Alexander Brevard, but they are inconsistent.You might still find the accounts helpful.You may be able to find the book by inter-library loan through your library's reference desk.The book also has been put on Ancestry.com, and might exist elsewhere on the internet, and the pension applications index at fold3.com has pretty well indexed names of officers and affiants that appear in pension applications.
Another book you might find helpful is Schenck, David, _North Carolina, 1780-'81: being a history of the invasion of the Carolinas by the British Army under Lord Cornwallis in 1780-'81 with the particular design of showing the part borne by North Carolina in that struggle for liberty and independence, and to correct some of the errors of history in regard to that State and its people_. Raleigh, N.C.: Edwards & Broughton, 1889.It is also accessible on Ancestry.com.