Kate Walker Behan (1851–1918) was an American club leader, prominent in social, educational, and Confederate memorial affairs in the South for many years.

[2] While Behan lived in White Castle, she raised funds to erect and beautify of the Church of Our Lady of Prompt Succor.

She assisted the Sisters of Charity when the organization gained responsibilities at the newly founded Lepers' Home near White Castle.

[2] Behan was deeply interested in the passage of the "Foraker Bill" in the United States Congress, which supported the perpetual care of the graves of the Confederate dead buried in Northern cemeteries.

8 of the New Orleans Chapter of the American Red Cross, Behan worked at making surgical dressings, garments, and knitted articles.

[2] In 1865, just after the Civil War, she married General William J. Behan, with whom she resided for many years at Alhambra, White Castle, Louisiana, and New Orleans.