Theodor Dielitz

Born in Landshut in 1810, he spent part of his early childhood in Paris before moving to Berlin with his family in 1815. He studied classical philology and history in Berlin, then built his career in education, serving as a teacher and later as a school director.

Alongside his school work, he wrote extensively for young readers and students. His books ranged from textbooks to popular works on natural history, travel, and adventure, and he became known as a Jugendsschriftsteller—a writer for children and youth. Many of his stories introduced faraway places, animals, and historical subjects in an accessible, engaging way.

Library and biographical records identify him as Gabriel Maria Theodor Dielitz and give his life dates as April 2, 1810, to January 30, 1869. Although the dates you supplied list 1865, the reliable sources I found point to 1869. I couldn’t confirm a suitable portrait image for him, so none is included here.