However, the 9th Earl died in 1910, just as the family was due to move in. Until these modifications, the southern front of the building had 11 three-storey bays; in order to make the building look more 17th-century in style, the third, fourth, eighth, and ninth bays were reduced to two stories with dormers, and a centrepiece of three bays was added, with columns each side of the central bay as well as stone pediments. William Grey died in 1910 and was succeeded by his son, Roger Grey, 10th Earl of Stamford, who donated the house, its contents, and the 3000 acre estate to the National Trust at his death in 1976. At the time it was the Trust's most generous bequest in its history. Stamford Military Hospital During World War I, Penelope Grey, Countess of Stamford, wife of the 9th Earl of Stamford, made the house available to the Red Cross as a military hospital, becoming known as the Stamford Military Hospital from April 1917 to January 1919. It hosted 182 injured soldiers who had suffered injuries and needed medical care, but not life-threatening, ranging from gas poisoning to bullets in the brain. The hospital was run by Sister Catherine Bennett. Lady Stamford's daughter, Lady Jane Grey (later Turnbull), trained as a nurse at the hospital. From 1 March 2014 until 11 November 2016, the main ward at Stamford Military Hospital (known as "Baghdad"), along with the operating theatre, nurses' station and the recreation room were recreated to commemorate the 100-year anniversary of the start of World War I, along with actors playing the role of characters who worked, lived and recovered at the hospital. Collections Dunham Massey contains one of the most significant collections of Huguenot silver, largely collected by George Booth, 2nd Earl of Warrington. During his 64 years at Dunham Massey, he accumulated over 1000 pieces of silver. One sixth of the original plate remains at Dunham Massey, with much of the collection being dispersed by the Countess of Stamford and Warrington (who died in 1905), widow of George Harry Grey, 7th Earl of Stamford and Warrington (died 1883). The 10th Earl, Roger Grey, expended much money and effort in returning family heirlooms originally from Dunham Massey. There is a fine collection of oil paintings and watercolours. The relief wood-carving of the Crucifixion by Grinling Gibbons, which hangs in the Library, is the earliest known work