Is Russell Anderson a Mormon?
Likely.
But I guess you missed these money quotes:
From Henry W. Silver: “Based upon that examination, it is my conclusion that the handwriting of the twelve pages from I Nephi of the Book of Mormon (the unknown scribe) is definitely not the same as that of Solomon Spaulding.” (Brown 1984, 20)
From Howard C. Doudler: “As I stated in my report dated March 4, 1977 of some writing similarities and letter charateristics appeared both in the manuscript and the Book of Mormon. I now contribute these similarities to the writing style of that century. I have found writing and letter dis-similarities that are unexplainable and are not attributed to individual writing variations of the same writer. It is my conclusion the handwriting in the name of Solomon Spalding is NOT the author of the unidentified pages, listed as Q-1 thru Q-9 in this report of the Book of Mormon” (Brown 1984, 37)
Gerald Tanner, a Mormon critic also viewed the original documents and stated, “After looking carefully at the revelation [D&C 56], I became convinced that it was probably written by the same scribe who wrote the 12 contested pages in the Book of Mormon manuscript. Both manuscripts in turn differed from Spalding’s work in important features.”