Gertrude von Petzold was a pioneer in many ways: in England she was the first woman who got a post as a church minister, in Germany she was the first woman who qualified for a professorship in Germanics at Kiel University. At times when woman were not even allowed to vote, von Petzold pursued her academic career eagerly. Her ecumenical attitude resulted in membership within the Lutheran Church, the Unitarians and finally the Quakers.
"Gertrude von Petzold (1876-1952): Quaker and First Woman Minister,"
Quaker Studies: Vol. 12
, Article 9.
Available at: https://digitalcommons.georgefox.edu/quakerstudies/vol12/iss1/9