Isidore Gluckstein

Isidore Gluckstein (1851-1920) was a director of Salmon & Gluckstein tobacco merchants, and one of the founders of J. Lyons and Co., a restaurant chain, food manufacturing, and hotel conglomerate created in 1884 that dominated British mass-catering in the first half of the twentieth century.
Isidore Gluckstein was the son of Samuel Gluckstein, the founder of Salmon & Gluckstein.
He married Rose Cohen (1851-1908), and they had children:
Hannah Ann Appel
Barnett Salmon Gluckstein (1879-1941)
Sir Samuel Gluckstein (1880-1958)
Lena Gluckstein, married Harry Salmon
Julia Gluckstein, married Frederick Levy (grandparents of Nigel Lawson)
Major Montague Isidore Gluckstein OBE (1886-1958)
Matilda Gluckstein