Parse this person name:

David Brock, 1941-1998, flourished 1960-1975
user
first_name: David
last_name: Brock
middle_names: []
temporal:
- start: 1941
  end: 1998
  type: life_span
- start: 1960
  end: 1975
  type: flourished
titles: []
extra_info: []
assistant