They had three children, William John, Robert Lee, and Merle Ray.

Entity and relation annotations:
id: 0
type: entity
value: text: William John
labels: <Person>
id: 1
type: entity
value: text: Robert Lee
labels: <Person>
id: 2
type: entity
value: text: Merle Ray
labels: <Person>
type: relation
to_id: 1
labels: Person:family:Person
from_id: 0
type: relation
to_id: 2
labels: Person:family:Person
from_id: 1
type: relation
to_id: 2
labels: Person:family:Person
from_id: 0