This is a list of characters and their kids. Just thought I should put it in.
Adults
Percy Alexander Jackson
Annabeth Hannah Jackson
Jason Roger Grace
Piper Jesse Grace
Frank Joseph Zhang
Hazel Miranda Zhang
Thalia Ella Grace
Leo Jose Valdez
Anna Leah Valdez
Kids
Patrick Brian Jackson (5)
Nixy Alison Jackson (1)
Aria May Grace (5)
Maya Rose Grace (10 months)
Ethan James Zhang (5)
Ned Ben Zhang (4 months)
Taylor Marie Grace (5)
John Ehan Valdez (7)
Jessica Maria Valdez (3)
Madalyn Grace Valdez (1)
Carter Chase Valdez (1 month)
Those are the names of the main characters.
-Wolfswag12