Doing quick answers for your connivence, feel free to ask for elaboration and/or quotes at any point.
Do you believe that there is one God?
The Father, Son, and Spirt are 3 persons in 1 God. Christ's doesn't pray to Himself, He prays to the Father, etc. They are one (John 17 is a great chapter)
Do you believe Jesus is one of many of God's children...such as Lucifer?
Jesus Christ alone is the Son of God. The perfect redeemer, 100% divine.
The Father is the Father of all though. Everyone are His sons (and daughters). Which technically makes everyone siblings, though what you do is up to you. There aren’t two people more different than the perfect Son Jesus whom so perfectly carried out the Father’s will, versus Lucifer whom completely rebelled and was cast out.
Do you believe humans can eventually become Gods like Almighty God?
Through Christ's atonement, become His disciples will eventually become one *with* God, co-heirs with Christ. There's no replacing Him, rather joining Him (again, John 17 is wonderful).
Is Mexico or South America significantly connected or important in relation to Mormon history? (Odd question, I know.)
This can be answered in two regards--
In the 1800's: the LDS Christian people and church faced heavy persecution from other folks in the USA and repeatedly were driven out of their homes. Eventually, they fled to what was then Mexico and settled Salt Lake City and lot of towns in the Rocky Mountain west, and Mexico. A second wave of people then moved down to Mexico in the late 1800's and set up more towns.
Pre-Columbus times: it is believed that ~600 AD a group of Jews were guided by God to take a boat and settled in the America's. They had families, eventually Christ visited, and their righteous way of life eventually got wiped out (this is the plot of the Book of Mormon). Where exactly is unknown.
@Jane_Doe22 There are other ways they store genealogical files. But do you have a link?
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