From the Supporter (Ohio newspaper) of Nov 17, 1809 (page 2)
From the Commentator. MARIETTA, NOV. 4
DIED, at Belpre, in this county, on Monday last, CAPT. WILLIAM DANA, in the 65th year of his age................(lengthy obituary with few personal details).........He was born at Cambridge, in Massachusetts........In the celebrated battle of Bunker's Hill, when the veterans of Great Britain were first taught to respect American bravery, he commanded a Company of Artillery. He was afterwards with Washington in the perilous scenes near the city of New York, and was in the engagements that took place near Kingsbridge and Whiteplains. The care of a young and promising family soon after obliged to resign his command.
He was among the early settlers of this state, and, with his family, shared in the dangers and hardships of the Indian war...............
His funeral was attended on Wednesday last, and an appropriate sermon was delivered by the Rev. Stephen Lindsley, of this place, to a numerous and respectable audience, assembled on the mournful occasion.
So, the above notice was originally in the Marietta Commentator of Saturday, Nov 4, 1809 before being copied to the later Nov. 17 newspaper. Therefore, he died on the "Monday last", being Oct 30, 1809 in his 65th year of age which usually means he has not yet turned 65, so was 64 years old, therefore born abt 1745.