MH "official" account about Zelph discovery.
Willard Richards, History, 1838–1856, volume A-1 [23 December 1805–30 August 1834], pp. 482-483, The Joseph Smith Papers website, accessed August 11, 2021
Tuesday the 3rd.. During our travels we visited several of the mounds which had been thrown up by the ancient inhabitants of this country, Nephites, Lamanites &c, and this morning I went up on a high mound, over near the river, accompanied by the <several> brethren. From this mound we could overlook the tops of the trees and view the prairie on each side of the river as far as our vision could extend, and the scenery was truly delightful. On the top of the mound were stones which presented the appearance of three altars having been erected one above the other, according to ancient order; and <the remains of> human bones were strewn over the surface of the ground. The brethren procured a shovel & hoe and removed removing the earth to the depth of about one foot discovered the skeleton of a man. almost entire, and between his ribs was <the stone point of> a Lamanitish arrow, which evidently produced his death. Elder Brigham Young <Burr Riggs> retained the arrow, and the brethren carried some pieces of the skeleton to Clay county. The contemplation of the scenery before <around> us produced peculiar sensations in our bosoms; and <subsequently> the visions of the past being opend to my understanding by the Spirit of the Almighty I discovered that the person whose Skeleton was before us, <we had seen> was a white Lamanite, a large thick set man, and a man of God. <His name was Zelph.> He was a warrior <and Chieftain> under the great prophet Onandagus, who was known from the hill Cumorah, or eastern sea, to the Rocky Mountains. His name was Zelph. The curse was taken from him, <Zelph> or, at least, in part. One of his thigh bones was broken by a stone flung from a sling, while in battle, years before his death. He was killed in battle, by the arrow found among his ribs, during a last great struggle with the Lamanites. and Nephites.
Words within carets are <Inserted>. The insertions are in the handwriting of Wilmer Benson. It is unclear when the redactions and insertions were made. Joseph Smith is listed as the source because he was overseeing the Manuscript History of the Church project at this time this record was made. It compiles details primarily from the records of Heber C. Kimball and Wilford Woodruff.