Parse this person name:

Middleton, Sheri L. James Matthew Steven Brian., North Tracey (born 1577)
user
first_name: Sheri
last_name: Middleton
middle_names:
- L.
- James
- Matthew
- Steven
- Brian
temporal:
- start: 1577
  end: null
  type: life_span
titles: []
extra_info:
- North Tracey
assistant