There were 6 children. You have left off one child - John born 1877 Yates Co. I'm looking at the family also. My great grandfather was Charles J. Kennerson son of Benjamin. My grandmother was Florence Kennerson Slater daughter of Charles J.Kennerson. First 3 children born in Columbia Co. - Emma 1858, Charles 1862, Frank 1865, Then Margaret 1869 Dutchess Co, Smith- Columbia Co.,& John 1877 Yates Co.
How are you related? I haven't joined ancestry.com. I just have found info on the internet.