Do you know where in upstate NY.We have Alexander's in our family tree.My gg grandmother was Susan Alexander (1828-1910) of Galway, NY who married George Logan also of Galway.Her father was Hugh Alexander (b. 1793 in Galway and died there in 1842).Her mother was Patty Candee (1799-1849 also both in Galway).Hugh's father was John Alexander of Girvan, Ayrshire, Scotland (b. 1760).He married Ruth Holmes (b. 1766 in Hossnick, CT) in Charlton, Albany County, NY in 1786. He died in 1841.His father was Hugh Alexander b. 1725 in Scotland and died abt. 1803.I do not know anything of siblings, though there must have been...Your Joseph might have fit in here somewhere...a sibling of John or the second Hugh?!?