My relatives are Dunham. They are burried in the Cemetary between stanford and Prattsville, NY. My Grandmother Mary (Dunham) Lindholm grew up on a farm in Pittfield, NY. Then lived in New Berlin till she passed in 1999. Also Her Sister Estelle W. Dunham lived in New Berlin and passed a few year prior. He Son Harry Dunham still resides in New Berlin. I do remember the name Canfield in relation to the family. I am sure there are some relation to the people of whom you speak of.
Nicole (Lindholm) Phillips