I. C. Wellcome mentions Ethan Smith's arguments with William Miller on the Second Coming.
Isaac C. Wellcome, History of the Second Advent Message and Mission, Doctrine and People (Yarmouth, ME: I. C. Wellcome, 1874), 163–164
We find an article with the above caption in the "Signs of the Times," by one who had just returned from the East. . . . The article was written to meet an objection urged by Elders Ethen Smith, D. Campbell, Phelps, and others, against the idea that the Lord was about to return.