Genesis 18:1-33

Abraham : a son of Terah; the father of Isaac; ancestor of the Jewish nation.,the son of Terah of Shem

Gomorrah : an ancient city known for its sin whose ruins are said to be visible from the Masada,a town destroyed with Sodom by burning sulphur
(31° 9´, 35° 28´)

Mamre : a place where Abraham camped, probably a few km north of Hebron,an Amorite chief who was Abraham's ally, with Eshcol and Aner
(31° 32´, 35° 5´)

Sarah : the wife of Abraham and the mother of Isaac,daughter of Terah; wife of Abraham

Sodom : an ancient town somewhere in the region of the Dead Sea that God destroyed with burning sulphur,a town 25 km south of Gomorrah and Masada
(31° 11´, 35° 23´)

Genesis 21:20

There is no Names related to this verses.

Genesis 28:1

Canaanite : residents of the region of Canaan
(31° 41´, 34° 50´); (33° 33´, 35° 21´)

Jacob : the second so of a pair of twins born to Isaac and Rebeccaa; ancestor of the 12 tribes of Israel,the nation of Israel,a person, male,son of Isaac; Israel the man and nation

Genesis 33:20

El-Elohe-Israel : a place, a named altar, (also entered after Eleazar below),a named altar (also entered after El-Bethel above)

Israel : a citizen of Israel.,a member of the nation of Israel