Morris Philip Greengross (30 September 1892 - 23 July 1970) was a jeweller and local politician. Born in Russia as Moisze Fiszel Gringross, by 1925 he was living in Golders Green, with a business based in central London. In December of that year he was naturalised as a British citizen. He became a member of Holborn Borough Council and chairman of Holborn Savings Committee. He was awarded the OBE in the Birthday Honours 1958. He served as Mayor of Holborn in 1960-61. Some information here [1] and here [2].