Kathleen Yerger Johnstone (August 19, 1906 – June 19, 1996) was an American nature writer, dance educator, and "Alabama's most famous conchologist".

[2] She graduated from the Mississippi State College for Women in 1927, and pursued further education at Columbia University.

[3] Yerger taught dance classes at the Lausanne School in Tennessee and at Arlington Hall in Virginia, as a young woman.

)[8] Johnstone was president of the Junior League of Mobile, and promoted the city's public art and architectural features.

[9] She wrote an essay for the Junior League's national magazine in 1945, proposing increased wages, shorter hours, and other improved conditions for domestic workers after World War II.