Parse this person name:

Philip C. Lenn van Dokkum-Maas, Tjuchem, flourished 1901-1940
user
first_name: Philip
last_name: van Dokkum-Maas
middle_names:
- C.
- Lenn
temporal:
- start: 1901
  end: 1940
  type: flourished
titles: []
extra_info:
- Tjuchem
assistant