Parse this person name:

Margaret Anders, 1791-1869, flourished 1819-1840
user
first_name: Margaret
last_name: Anders
middle_names: []
temporal:
- start: 1791
  end: 1869
  type: life_span
- start: 1819
  end: 1840
  type: flourished
titles: []
extra_info: []
assistant