Laurens: John Laurens becomes good friends with Hamilton. He works to end slavery and creates the first black battalion, which fought in the American Revolution in exchange for freedom. When Washington forbids Hamilton from dueling Charles Lee, Laurens does it instead. He dies sometime during the Revolution.

Phillip: Alexander and Eliza’s oldest son, Philip, is a self-proclaimed poet. He learns French and piano from his mother. He has the same intelligence and charm as his father. He dies in a duel, defending his father’s honor.

(Source: https://www.gradesaver.com/hamilton/study-guide/character-list)