Parse this person name:

Lindsey Morgan (1714-1774, flourished 1741-1754)
user
first_name: Lindsey
last_name: Morgan
middle_names: []
temporal:
- start: 1714
  end: 1774
  type: life_span
- start: 1741
  end: 1754
  type: flourished
titles: []
extra_info: []
assistant