Find a Grave, database and images (https://www.findagrave.com/memorial/152910807/louis-m-kopulos: accessed 06 January 2024), memorial page for Louis M. Kopulos (11 May 1892–9 Nov 1964), Find a Grave Memorial ID 152910807, citing Calvary Cemetery, Kansas City, Jackson County, Missouri, USA; Maintained by Fred Grunwald (contributor 48680136).