The Autobiography of Parley P. Pratt is one of the most important sources of early Church history. In addition to being well written, the book is frequently cited by Church historians.
In Chapter 8, Pratt relates his encounter with an Indian Chief. He quotes the teachings of his missionary companion, Elder Oliver Cowdery. I put the original text in blue below.
You can see an original version of the book here:
https://archive.org/details/autobiographyofp00prat/page/58
Cowdery's explanation that it was Moroni who identified the hill in New York as Cumorah, and his comments about the translation, are in bold and red.
There was an interpreter present and through him we commenced to make known our errand, and to tell him of the Book of Mormon. We asked him to call the council his nation together and give us a hearing in full. He promised to consider on it till next day, in the meantime recommending us to a certain Mr. Pool for entertainment; this was their blacksmith, employed by government.
The man entertained us kindly and comfortably. Next morning we again called on Mr. Anderson, the old chief, and explained to him something of the Book. He was at first unwilling to call his council; made several excuses, and finally refused; as he had ever been opposed to the introduction of missionaries among his tribe.
We continued the conversation a little longer, till he at last began to understand the nature of the Book. He then changed his mind; became suddenly interested, and requested us to proceed no further with our conversation till he could call a council. He despatched a messenger, and in about an hour had some forty men collected around us in his lodge, who, after shaking us by the hand, were seated in silence; and in a grave and dignified manner awaited the announcement of what we had to offer. The chief then requested us to proceed; or rather, begin where we began before, and to complete our communication. Elder Cowdery then commenced as follows:
"Aged Chief and Venerable Council of the Delaware nation; we are glad of this opportunity to address you as our red brethren and friends. We have travelled a long distance from towards the rising sun to bring you glad news; we have travelled the wilderness, crossed the deep and wide rivers, and waded in the deep snows, and in the face of the storms of winter, to communicate to you great knowledge which has lately come to our ears and hearts; and which will do the red man good as well as the pale face.
"Once the red men were many; they occupied the country from sea to sea—from the rising to the setting sun; the whole land was theirs; the Great Spirit gave it to them, and no pale faces dwelt among them. But now they are few in numbers; their possessions are small, and the pale faces are many.
"Thousands of moons ago, when the red men's forefathers dwelt in peace and possessed this whole land, the Great Spirit talked with them, and revealed His law and His will, and much knowledge to their wise men and prophets. This they wrote in a Book; together with their history, and the things which should befall their children in the latter days.
"This Book was written on plates of gold, and handed down from father to son for many ages and generations. It was then that the people prospered, and were strong and mighty; they cultivated the earth; built buildings and cities, and abounded in all good things, as the pale faces now do.
"But they became wicked; they killed one another and shed much blood; they killed their prophets and wise men, and sought to destroy the Book. The Great Spirit became angry, and would speak to them no more; they had no more good and wise dreams; no more visions; no more angels sent among them by the Great Spirit; and the Lord commanded Mormon and Moroni, their last wise men and prophets, to hide the Book in the earth, that it might be preserved in safety, and be found and made known in the latter day to the pale faces who should possess the land; that they might again make it known to the red man; in order to restore them to the knowledge of the will of the Great Spirit and to His favor. And if the red man would then receive this Book and learn the things written in it, and do according thereunto, they should cease to fight and kill one another; should become one people; cultivate the earth in peace, in common with the pale faces, who were willing to believe and obey the same Book, and be good men and live in peace.
"Then should the red men become great, and have plenty to eat and good clothes to wear, and should be in favor with the Great Spirit and be his children, while he would be their Great Father, and talk with them, and raise up prophets and wise and good men amongst them again, who should teach them many things.
"This Book, which contained these things, was hid in the earth by Moroni, in a hill called by him, Cumorah, which hill is now in the State of New York, near the village of Palmyra, in Ontario County.
"In that neighborhood there lived a young man named Joseph Smith, who prayed to the Great Spirit much, in order that he might know the truth; and the Great Spirit sent an angel to him, and told him where this Book was hid by Moroni; and commanded him to go and get it. He accordingly went to the place, and dug in the earth, and found the Book written on golden plates.
"But it was written in the language of the forefathers of the red man; therefore this young man, being a pale face, could not understand it; but the angel told him and showed him, and gave him knowledge of the language, and how to interpret the Book. So he interpreted it into the language of the pale faces, and wrote it on paper, and caused it to be printed, and published thousands of copies of among them; and then sent us to the red men to bring some copies of it to them, and to tell them this news. So we have now come from him, and here is a copy of the Book, which we now present to our red friend, the chief of the Delawares, and which we hope he will cause to be read and known among his tribe; it will do them good."
We then presented him with a Book of Mormon.
There was a pause in the council, and some conversation in their own tongue, after which the chief made the following reply: "We feel truly thankful to our white friends who have come so far, and been at such pains to tell us good news, and especially this new news concerning the Book of our forefathers; it makes us glad in here"—placing his hand on his heart.
An online text version of the book is available here:
http://www.gutenberg.org/files/44896/44896-h/44896-h.htm
In Chapter 8, Pratt relates his encounter with an Indian Chief. He quotes the teachings of his missionary companion, Elder Oliver Cowdery. I put the original text in blue below.
You can see an original version of the book here:
https://archive.org/details/autobiographyofp00prat/page/58
Cowdery's explanation that it was Moroni who identified the hill in New York as Cumorah, and his comments about the translation, are in bold and red.
There was an interpreter present and through him we commenced to make known our errand, and to tell him of the Book of Mormon. We asked him to call the council his nation together and give us a hearing in full. He promised to consider on it till next day, in the meantime recommending us to a certain Mr. Pool for entertainment; this was their blacksmith, employed by government.
The man entertained us kindly and comfortably. Next morning we again called on Mr. Anderson, the old chief, and explained to him something of the Book. He was at first unwilling to call his council; made several excuses, and finally refused; as he had ever been opposed to the introduction of missionaries among his tribe.
We continued the conversation a little longer, till he at last began to understand the nature of the Book. He then changed his mind; became suddenly interested, and requested us to proceed no further with our conversation till he could call a council. He despatched a messenger, and in about an hour had some forty men collected around us in his lodge, who, after shaking us by the hand, were seated in silence; and in a grave and dignified manner awaited the announcement of what we had to offer. The chief then requested us to proceed; or rather, begin where we began before, and to complete our communication. Elder Cowdery then commenced as follows:
"Aged Chief and Venerable Council of the Delaware nation; we are glad of this opportunity to address you as our red brethren and friends. We have travelled a long distance from towards the rising sun to bring you glad news; we have travelled the wilderness, crossed the deep and wide rivers, and waded in the deep snows, and in the face of the storms of winter, to communicate to you great knowledge which has lately come to our ears and hearts; and which will do the red man good as well as the pale face.
"Once the red men were many; they occupied the country from sea to sea—from the rising to the setting sun; the whole land was theirs; the Great Spirit gave it to them, and no pale faces dwelt among them. But now they are few in numbers; their possessions are small, and the pale faces are many.
"Thousands of moons ago, when the red men's forefathers dwelt in peace and possessed this whole land, the Great Spirit talked with them, and revealed His law and His will, and much knowledge to their wise men and prophets. This they wrote in a Book; together with their history, and the things which should befall their children in the latter days.
"This Book was written on plates of gold, and handed down from father to son for many ages and generations. It was then that the people prospered, and were strong and mighty; they cultivated the earth; built buildings and cities, and abounded in all good things, as the pale faces now do.
"But they became wicked; they killed one another and shed much blood; they killed their prophets and wise men, and sought to destroy the Book. The Great Spirit became angry, and would speak to them no more; they had no more good and wise dreams; no more visions; no more angels sent among them by the Great Spirit; and the Lord commanded Mormon and Moroni, their last wise men and prophets, to hide the Book in the earth, that it might be preserved in safety, and be found and made known in the latter day to the pale faces who should possess the land; that they might again make it known to the red man; in order to restore them to the knowledge of the will of the Great Spirit and to His favor. And if the red man would then receive this Book and learn the things written in it, and do according thereunto, they should cease to fight and kill one another; should become one people; cultivate the earth in peace, in common with the pale faces, who were willing to believe and obey the same Book, and be good men and live in peace.
"Then should the red men become great, and have plenty to eat and good clothes to wear, and should be in favor with the Great Spirit and be his children, while he would be their Great Father, and talk with them, and raise up prophets and wise and good men amongst them again, who should teach them many things.
"This Book, which contained these things, was hid in the earth by Moroni, in a hill called by him, Cumorah, which hill is now in the State of New York, near the village of Palmyra, in Ontario County.
"In that neighborhood there lived a young man named Joseph Smith, who prayed to the Great Spirit much, in order that he might know the truth; and the Great Spirit sent an angel to him, and told him where this Book was hid by Moroni; and commanded him to go and get it. He accordingly went to the place, and dug in the earth, and found the Book written on golden plates.
"But it was written in the language of the forefathers of the red man; therefore this young man, being a pale face, could not understand it; but the angel told him and showed him, and gave him knowledge of the language, and how to interpret the Book. So he interpreted it into the language of the pale faces, and wrote it on paper, and caused it to be printed, and published thousands of copies of among them; and then sent us to the red men to bring some copies of it to them, and to tell them this news. So we have now come from him, and here is a copy of the Book, which we now present to our red friend, the chief of the Delawares, and which we hope he will cause to be read and known among his tribe; it will do them good."
We then presented him with a Book of Mormon.
There was a pause in the council, and some conversation in their own tongue, after which the chief made the following reply: "We feel truly thankful to our white friends who have come so far, and been at such pains to tell us good news, and especially this new news concerning the Book of our forefathers; it makes us glad in here"—placing his hand on his heart.
An online text version of the book is available here:
http://www.gutenberg.org/files/44896/44896-h/44896-h.htm