I cannot find this census entry. I have tried my most clever searches without success. I give up and declare "no census entry" for this person. A small reward for the first to prove me wrong.
I have birth record for Clarissa in 1871 in Montrose, but scanned entire 21 pages of 1870 census for Montrose with no luck. There IS an Edward and Julia Denslow from New York, but children do NOT match. Wife is Judith (not Elizabeth) in 1871 birth.