They preside over the church when the President of the Church dies (before a new prophet is called)
Quorom of the Twelve Apostles
I, the Lord, am bound when ye do what I say
D&C 82:10
D&C 132: This is only allowed when the Lord specifically commands it
Plural Marriage
The jail where Joseph Smith was killed
Carthage
D&C 64:9-11
Of you it is required to forgive ALL men
This angel restored the Aaronic Priesthood to Joseph Smith and Oliver Cowdery on on May 15, 1829
John the Baptist

He was the next prophet after
Joseph Smith

Brigham Young
He who hath repented of his sins, the same is forgiven
D&C 58:42-43
D&C 127-128
Our ancestors need us for this
Baptism for the Dead
First temple of the Restoration was built here
Kirtland
D&C 135:3
Joseph Smith brought forth the Book of Mormon by the power of God
They conferred the Melchizedek priesthood on Joseph and Oliver in May 1829
Peter, James, and John 
He was martyred alongside Joseph Smith

Hyrum Smith, Joseph's brother
The Father and the Son have bodies of flesh and bone; the Holy Ghost is a spirit
D&C 130:22-23
D&C 76:
The Three Degrees of Glory
Celestial, Terrestrial, Telestial
Mobs chased the Saints out of three different counties in this state in the 1830s
Missouri
D&C 76:22-24
By Jesus Christ the worlds are and were created
The rights of the priesthood can only be controlled or handled on this principle
Righteousness
This prophet ended the practice of plural marriage

Wilford Woodruff
The Melchizedek Priesthood has power and authority to administer in spiritual things
D&C 107:8
We believe all that God has revealed, all that He does now reveal, and we believe that He will yet reveal many important things pertaining to the Kingdom of God
Article of Faith #9
This beautiful city was built on a malaria-infested swamp by the Mississippi River 
Nauvoo
D&C 107:8
The Melchizedek Priesthood has power and authority...to administer in spiritual things.
The power to direct the exercise of the priesthood
Priesthood Keys
Group of 200 volunteers that marched from Ohio to Missouri to help restore Saints to their homes/lands

Zion's Camp
In the ordinances thereof, the power of godliness is manifest
D&C 84:20-22
D&C 138: President Joseph F. Smith had a vision of this
Christ visiting the spirit world

Place where Jesus will appear at his Second Coming
Mount of Olives in Jerusalem
The Temple in New Jerusalem - Independence, Missouri
D&C 130:22-23
The Father has a body of flesh and bones...; the son also; but the Holy Ghost...is a personage of spirit
These 3 ancient prophets restored priesthood keys in the Kirtland Temple on April 3, 1836
Moses, Elias, Elijah