Parse this person name:

Marvin Kelley, 1915-1961, flourished 1935-1954
user
first_name: Marvin
last_name: Kelley
middle_names: []
temporal:
- start: 1915
  end: 1961
  type: life_span
- start: 1935
  end: 1954
  type: flourished
titles: []
extra_info: []
assistant