Death

President Thomas S Monson, The Perfect Path to Happiness, October 2016 General Conference
"We are blessed to have the truth. We have a mandate to share the truth. Let us live the truth, that we might merit all that the Father has for us. He does nothing save it be for our benefit."

The After Life - Post Death and Pre Resurrection

History of the Church, 6:52; included in Teachings of the Prophet Joseph Smith, 326; often quoted, as in Henry B. Eyring, To Draw Closer to God (1997), 122; see also Teachings of Presidents of the Church: Brigham Young (1997), chapter 38, “The Spirit World.”
“The spirits of the just are exalted to a greater and more glorious work … [in] the world of spirits. … They are not far from us, and know and understand our thoughts, feelings, and motions, and are often pained therewith.”

President Dallin H Oaks, Trust in the Lord, October 2019 General Conference
“...family members who were righteous will be together in the world of spirits.”

Alma 40:12 
12 And then shall it come to pass, that the spirits of those who are righteous are received into a state of happiness, which is called paradise, a state of rest, a state of peace, where they shall rest from all their troubles and from all care, and sorrow.

Death is Not the Final Judgement

Isaiah 24:21-22
21 And it shall come to pass in that day, that the Lord shall punish the host of the high ones that are on high, and the kings of the earth upon the earth.
22 And they shall be gathered together, as prisoners are gathered in the pit, and shall be shut up in the prison, and after many days shall they be visited.

What Happens To Children That Die Without Baptism?

Moroni 8:19-23
19 Little children cannot repent; wherefore, it is awful wickedness to deny the pure mercies of God unto them, for they are all alive in him because of his mercy.
20 And he that saith that little children need baptism denieth the mercies of Christ, and setteth at naught the atonement of him and the power of his redemption.
21 Wo unto such, for they are in danger of death, hell, and an endless torment. I speak it boldly; God hath commanded me. Listen unto them and give heed, or they stand against you at the judgment-seat of Christ.
22 For behold that all little children are alive in Christ, and also all they that are without the law. For the power of redemption cometh on all them that have no law; wherefore, he that is not condemned, or he that is under no condemnation, cannot repent; and unto such baptism availeth nothing—
23 But it is mockery before God, denying the mercies of Christ, and the power of his Holy Spirit, and putting trust in dead works.

Doctrine and Covenants 29:46-47
46 But behold, I say unto you, that little children are redeemed from the foundation of the world through mine Only Begotten;
47 Wherefore, they cannot sin, for power is not given unto Satan to tempt little children, until they begin to become accountable before me;