I show a Mary Fidelia Horsford (who married a Harry H. Nell) who was the daughter of Mabel Maria Allen (who married Robert Henry Horsford 2-7-1856). Mabel (8) was the daughter of Daniel Allen (7), then another Daniel (6), Noah (5), Joseph (4), Samuel (3), John (2), Samuel (1).
Ethan Allen line is Samuel (1), Nehemiah (2), Samuel (3), Joseph (4) and then Ethan.
Ethan had two sisters a Lydia and Lucy, neither were married to a Horesford or Horsford.
Does this help or make it worse??? If I can be of more help please feel free to contact me again.