His mother, Mary Alden Childers was a Bostonian whose ancestors arrived on the "Mayflower".

Entity and relation annotations:
id: 0
type: entity
value: text: Mary Alden Childers
labels: <Person>
id: 1
type: entity
value: text: "Mayflower"
labels: <Production>
id: 2
type: entity
value: text: Bostonian
labels: <Organization>
type: relation
to_id: 2
labels: Person:belongs_to_NORP:Organization
from_id: 0