- FondsPP - Gerhard Lohrenz fonds
- Series4 - Photographs
- 098 - Gerhard Lohrenz Slide collection--Mennonites in Russia
- Item369 - Men in the forestry service
- Item370 - A modern farming enterprise in Russia
- Item374 - Training a horse
- Item378 - The first Zentralschule in Halbstadt built in 1835
- Item379 - Unidentified building
- Item382 - A modern school
- Item385 - Chortitza Girls' School, Russia
- Item386 - School for the refugee children in Harbin
- 65 more...