Parse this person name:

Isaac Blanchard, 1918-1969, flourished 1941-1951
user
first_name: Isaac
last_name: Blanchard
middle_names: []
temporal:
- start: 1918
  end: 1969
  type: life_span
- start: 1941
  end: 1951
  type: flourished
titles: []
extra_info: []
assistant