Parse this person name:

Dawn Clayton (1840-1912, flourished 1862-1886)
user
first_name: Dawn
last_name: Clayton
middle_names: []
temporal:
- start: 1840
  end: 1912
  type: life_span
- start: 1862
  end: 1886
  type: flourished
titles: []
extra_info: []
assistant