There was a Newell Towles born est. 1826 who was 44y in 1870. His wife, Caroline, was 38y, born England. Their children were all born in NH. Henry was 19, William 5, Luke, 4 and Bertha A. was 1 year old.
There was also another, older Newell Towle, born about 1797-1800 in NH. In the 1850 and 1860 census, he was living in Rockingham, NH.