French brothers, Titanic survivors

Louis & Lola ? -- TITANIC survivors. Glass negative from the George Grantham Bain Collection, [1912]. Library of Congress Prints & Photographs Division. Photo taken before the 'orphans' of the Titanic were fully identified. The boys are French brothers Michel (age 4) and Edmond Navratil (age 2). To board the ship, their father assumed the name Louis Hoffman and used their nicknames, Lolo and Mamon. Their father died in the disaster of the RMS TITANIC, which struck an iceberg in April 1912 and sank, killing more than 1,500 people. https://www.loc.gov/item/2014691309/