When the Mormon saints were forced to leave the city of Nauvoo their exodus was so abrupt that they had no time to make any disposition of their temple nor it contents.
In 1908 the First Presidency of the Mormon Church defined minimum ages for the Aaronic Priesthood in the Mormon Church to be 12 years for Deacons, 15 years for Teachers and 18 years for Priests.
The disposition of the papyri from which the Book of Abraham was translated is not known.
Sacred covenants made in the temples of the Mormon Church give great strength because decisions made as matters of principal are much more powerful than decisions made as matters of judgement or convenience.
The signers of the Declaration of Independence appeared to President Wilford Woodruff in the St. Gearge Temple and received there te sacred ordinances of the gospel.
The plates from which the Book of Mormon was translated were received by Joseph Smith in September 1827, and returned to the Angel Moroni sometime afte June 11, 1829.
The date when the Prophet Joseph Smith was endowed is not given. However, endowments in the Kirtland Temple were performed as early as June, 1834.
The Joseph Smith translation of the King James bible was added to the King James version, rather than replacing it, so that the Mormon Church could maintain credibility with the world.
The Mormon Church has never claimed to have the Golden Plates, but claims that one the angel Moroni will return them so that the last part can be translated.
Since Brigham Young was such a beloved leader, the Mormons of his time wanted to honor him appropriately when he died.
