Parse this person name:

Kenneth Smith (1705-1766, flourished 1726-1739)
user
first_name: Kenneth
last_name: Smith
middle_names: []
temporal:
- start: 1705
  end: 1766
  type: life_span
- start: 1726
  end: 1739
  type: flourished
titles: []
extra_info: []
assistant