"1915 01 06." . . . "Mostly of a personal and social nature, mentioning the Polish Relief work and other Polish causes; with three postcards bearing photographs of Sembrich taken at the cottage at Lake Placid, one written and signed by Juliette de Coppet."@en . . . "New York, Lake Placid, Miami, [and other places, and n.p.], 1915-1934, to Harry Harkness Flagler, to Mrs. Flagler, and to Mr. & Mrs. Flagler"@en . . . . . . . . . "1916 01 29." . .