The founder of the firm was also the founder of a large family. There were twelve children and his oldest son, Mr Louis Landsberg, became a partner in the firm in 1870. Hirschfield Landsberg continued to travel throughout the country, until he was well over seventy and died in 1889 at the age of seventy-four.
Like his father, Louis Landsberg was a well-known figure in the provincial trade. He was famous for his voluminous pockets and a large black bag in which he carried a good deal of stock.
Louis Landsberg had three sons, Messrs. Frank H., George G., and Harold D. Landsberg. George served the firm for a few years only. He left to join the London Rifle Brigade at the outbreak of the First World War and was killed at Ypres in 1915.
Mr Harold Landsberg also left for the War, serving with the Expeditionary Force in the Middle East and was fortunate to return. In 1933 he won the Jewellers' Golf Championship (a feat which he modestly attributed to the fact that it was raining hard and the other competitors were wearing glasses.) In the same year, whilst driving his car in St James's he was stopped by three muggers who took all the stock he had with him.