Buchler née von Rhamm was born on 11 October 1876 in Braunschweig, Germany.

[2] A self-taught photographer, her husband gave Buchler her first camera (a binocular Voigtländer)[1] in 1901.

[4] Buchler worked mainly with black and white film but also experimented with the new Autochrome process.

[2] In 2003 the archive of 1,000 black and white prints and 175 color autochrome plates was donated to the Museum für Photographie (Braunschweig) [de] (Museum of Photography Braunschweig).

[3] In 2017 and 2018 an exhibition of Buchler's work Beyond the Battlefields:Käthe Buchler’s Photographs of Germany in the Great War was shown at the University of Hertfordshire and the University of Birmingham.