It is important to examine their sources ....

Today I read about the problems researchers contend with working with Joseph Smith Papers. Joseph Smith is well documented. He had printers who wrote down everything he said and did. The problem of course is that the printers may have misheard, misunderstood, and that those who read what has been written has not managed to decipher some printer's handwriting. An example in the article that was raised was that a printer had drawn down to Emma Smith had [given] a child (child) and that Joseph Smith went away the following day. Little wonder, perhaps, until that concludes that no child is said to have been born at this time, but it was a cold (chill) that Emma had.

Deseret News. 150312.The good, the bad and the illegible: Deciphering handwriting of the early LDS Church scribes