Looking for John Silverwood Harriet Anna Way Olive Kline Harry Byrn

I have a Charles Austin Heninger b. sept 2 1873 d August 3 1945 He Married Anne Oletha Alderson. They had 12 Children.
Half of his Aunts and Uncles Kept the double NN and out of his line or his siblings only one kept the double NN From what my Aunt said..You might know different though.

My 2nd great grandfather james silverwood (1815-1854), born in Northumberland, had a son john Benjamin silverwood (1853-1920)who married harriet ann wray