Details regarding Anna Mangin's employment are unavailable at this time. This is speculative as to when she entered the workforce and the positions she might have held, it is heavily dependent on the specific career she had. This time could be when she started as a clerk, or in the education or medical field. More specific information on the profession would greatly improve the timeline.

Information regarding Anna Mangin's career advancement or significant projects is currently missing. This segment speculates when she may have received promotions or recognition for her work or may have participated in notable projects within her field. Researching her professional field is crucial to accurately fill in this timeline.

Depending on her career path and longevity, Anna Mangin may have retired or transitioned into a new field later in life. The details are unknown if she even continued working as she aged. Information regarding retirement or late-career activities are missing at this time.