Jacob Haun, not a Mormon? 

I am confused. According to this article, Haun was not a Mormon. But in "The Work and the Glory," a historical fiction series, it is explained in volume 4 that Haun was not only a Mormon but that he deliberately ignored counsel from Joseph Smith to vacate the settlement and lead the settlers to one of the Church's strongholds, such as Adam-Ondi-Ahman or Jackson County. For verification of these facts, see "Church History in the Fulness of Times," pg. 201. Pg. 183 of the same volume says Haun's Mill was a Mormon settlement established by Haun. With these evidences, how can we justify the claim that Haun was not a Mormon? I feel this needs to be fixed. Thoughts?