user: Question: What is the date of birth of Oliver Buell's child?
Columns: ['Child', 'Date of birth', 'Mother', 'Father', 'DNA testing status']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Oliver Buell', '1838 – 39', 'Presendia Huntington Buell', 'Norman Buell', 'Complete (November 2007)']
SQL:

assistant: SELECT "Date of birth" FROM "Table" WHERE "Child" = 'Oliver Buell';