Williams' son Alexander Williams, then aged four, provided the voice for Tiny Tim.

Entity and relation annotations:
id: 0
type: entity
value: text: Williams
labels: <Person>
id: 1
type: entity
value: text: Alexander Williams
labels: <Person>
id: 2
type: entity
value: text: Tiny Tim
labels: <Person>
type: relation
to_id: 1
labels: Person:family:Person
from_id: 0