Flint Family Columbia County

I am a descendant of David Flint (1770-1821). Not much is known regarding his siblings or parents. There is a lot of conjecture but no confirmed connections. I am trying to figure out if there is any relationship between Frederick Flint, Richard Flint, William Flint Jr, William Flint Sr, John M Flint, and Collins Flint. These were all found in various census records from 1790-1820. Based on their ages, I suspect David, William (Jr?), Richard, and Collins were brothers. If so could their father be a William Flint? David Flint's widow and children moved to Erie County after his death. Richard moved to Delaware County. Any help would be appreciated.

Thanks,
Joe Flint