From cemetery transcriptions collected by Bernice Douglas:
Growstown Cemetery copied to year 1938, by Mrs. Fred Harmon
“Luke Nickerson (Nickelson) buried on Milton Newell Road
‘Pension Claim S.37270, a man of color, enlisted at Harpswell in Jan. 1777, served as Private, etc., -- discharged in Jan. 1780.
Additional information is always welcome.