I am descended from the original Kagi immigration in 1715, but I have a book written by Franklin Keagy around the turn of the century. Rudolph K. was the 2nd son of Rudolph K who came to US in 1764. He was born 11/5/1773 in PA. Went to VA in 1781. Married Hannah Siple (b-9/30/1780, d-11/21/1871). Went to Fairfield Co. OH in 1819 from Rockingham Co VA. Died 8/5/1829. Hope this helps. There is more info on further descendants, but it isn't very well organized.