Parse this person name:

William Anderson, 1704-1744, flourished 1720-1739
user
first_name: William
last_name: Anderson
middle_names: []
temporal:
- start: 1704
  end: 1744
  type: life_span
- start: 1720
  end: 1739
  type: flourished
titles: []
extra_info: []
assistant