Kummer, Frederic Arnold: The Ivory Snuff Box. v1. 6 Mar 2013
 

Frederic Arnold Kumme (5 August 1873, Catonsville, Maryland, USA; 22 November 1943, Baltimore, Maryland, USA) American author, playwright and screen writer Frederic Arnold Kummer was born on 5 August, 1873 at Cantonsville, Maryland, to Arnold and Mary Morris Kummer. His father, who had emigrated from Germany in 1859 and had fought in the American Civil War, was part owner of Kummer & Becker, a banking and brokerage house in Baltimore that also acted as agents for the North German Lloyd Steamship Line.
Before Kummer turned to writing full time in 1907, he had been the chief engineer for the American Wood Preserving Company and later general manager of the Eastern Paving Block Company. Kummer was an 1894 graduate of Rensselaer Polytechnic Institute, where he had earned a degree in civil engineering. In 1901 he was awarded the Collingwood prize by the American Society of Civil Engineers (ASCE) for a paper he wrote on wood block paving techniques

Excerpt
The last thing that sounded in Richard Duvall's ears as he left the office of Monsieur Lefevre, Prefect of Police of Paris, were the latter's words, spoken in a voice of mingled confidence and alarm, "The fortunes of a nation may depend upon your faithfulness. Go, and God be with you." He entered the automobile which was drawn up alongside the curb, and accompanied by Vernet, one of the Prefect's assistants, was soon threading the torrent of traffic which pours through the Rue de Rivoli.