Johanna Brandt.jpg (Wikimedia Commons)

Wikimedia Commons file page, fetched directly via WebFetch. Studio portrait of Johanna Brandt (nee van Warmelo, 1876-1964), published in her 1913 memoir The Petticoat Commando; the Commons record traces it to a Project Gutenberg digitization of that book (no closer holding-institution record than the Commons file page and its linked Gutenberg text was discoverable). Photographer unknown. Original dimensions 638x900px, 64KB JPEG. Licensing per the fetched page: public domain in its country of origin and other countries where copyright terms are life plus 70 years or fewer, additionally tagged with the Wikimedia Commons Public Domain Mark 1.0. Used as the case's actor-role image (portrait of the practitioner).