I hope, chris, that you are researching still and will see this post. I have two harry's on my tree. One is the son of Grace and Henry Kahler. The other is the son of minnie and william kahler. William and Henry are brothers. Their father was Oscar; mother, Augusta.
Now as for Oriskiny,( I may have spelled it wrong) I have heard the town mentioned before years ago. I was quite young, but remember my father mentioning the name. That there were relatives there and in poughkeepsie, albany, schenecktady, shandakin and neskyuna?(this one I KNOW is spelled wrong!) I have in the census where they are from saxony and hamberg germany.
Write back if you think this may be a possibility H.Yerry@gmail.com