B. H. Roberts included it in his book Outlines of Ecclesiastical History, but he combined portions of Letter VII and Letter VIII without indicating his edits and omitted all the references to the final battles and Mormon’s depository of records in the New York hill.
It’s here in the 1902 edition:
No wonder Roberts had his famous problems with the historicity of the Book of Mormon.
Because our modern LDS scholars are also claiming Joseph and Oliver were wrong about Cumorah, they are leading members and investigators to also question the historicity of the Book of Mormon, exemplified by the fantasy map now being taught at BYU.
Source: Book of Mormon Wars