Since I am a member of the Daughters of the American Revolution (DAR), I already knew that one of my ancestors provided patriotic service during the war: Nathaniel Hammond of Connecticut.
I had also started collecting documentation to prove William Buckles on my mother's side of my tree.
Beyond that, I didn't know which of my ancestors might have served. Thus, I needed to create a list of ancestors who might have served so that I could research them in Fold3 and the DAR databases.
To create a list of potential people, I needed to know who was of the appropriate age to serve. I found a wiki on FamilySearch that lists various wars and suggests 'Ages of Servicemen in Wars.'
Using that information, I was able to create a marked group of those whose
Birth date is after 1715
AND Birth date is before 1767