File:Herbert Duckworth.jpgDescriptionHerbert Duckworth.jpg English: Photographic portrait of Herbert Duckworth Date Unknown date Unknown date Source Smith College Libraries https://www
File:Julia and Herbert Duckworth.jpgDescriptionJulia and Herbert Duckworth.jpg English: Copy of photograph of Julia and Herbert Duckworth 1867 Date 1867 Source Smith College Libraries https://www
File:Herbert spencer duckworth.jpgDescriptionHerbert spencer duckworth.jpg English: Herbert Spencer Duckworth Date 10 July 2011 Source www.navsource.org Author nav source team