There are three possible casualties of this name listed on the Commonwealth War Graves Commission web-site but there is nothing to show which, if any, is the man named on the Iping Memorial
Here are short biographical notes of the three men, none of which show any connection to this part of Sussex in general or Iping in particular. The 1911 Census for Iping and Chithurst shows no entries for the surname Feltham.
Private Walter Feltham was born in Bratton, near Westbury, Wiltshire in1885 the son of Charles and Betsy Feltham. He lived on a farm in Bratton, the son of a farm labourer until in 1908 he married Annie Nash in Westbury. By the 1911 Census he had moved to Chippenham and was working as a carter for a brewery.
He enlisted in Chippenham into the Coldstream Guards (service no. 17201) and was killed on 23 March 1918. His name is listed on the Arras Memorial.
Serjeant Walter Feltham was born in 1886 in Chitterne, Wiltshire the son of Hannah (Annie) Elizabeth Feltham then aged about 20. In 1881, his mother was living next door to her mother and step-father and working at a public house as a domestic servant. In 1890, his mother married and by 1891 the new family was living together in Chitterne. By1901 the family had moved to Hampshire and he was living with his mother and step-father near Twyford and working as a carter on a farm. In 1910, Walter Feltham married Evelyn in the Horsham area and the following year was living at Ifield near Crawley in Sussex and working as a cowman.
At some point he enlisted at Winchester into the Hampshire Regiment (service no. 6877). His Medal Roll card states that he first went to France on 23 August 1914 which indicates that he was a regular soldier. He was promoted to Lance Corporal and then to sergeant. He was killed in action on 4 October 1917 when as part of the 4th Division the battalion took part in an attack during the third battle of Ypres. His name is listed on the Tyne Cot Memorial.
Private Walter John Feltham was born in the second quarter of 1886 probably in Chalfont St Peter and his birth was registered in the Amersham district of Buckinghamshire. He was the son of John Feltham a general labourer and his wife Maria and the eldest of several children. The family lived in Laytons Green on the outskirts of Chalfont St Peter and by 1901 John Feltham was working as a gamekeeper while Walter was a 14 year old general labourer. In 1911, Walter married Emma Vincett in Shepherds Bush and the 1911 census shows them living together near Chalfont St Peter while Walter worked as a farm labourer.
Army records show that this Walter Feltham enlisted at Uxbridge. His name is associated both with the London Regiment and with the Royal Fusiliers (service no. 9761). Some of the battalions of the London Regiment were affiliated to the Royal Fusiliers.
He was killed in action on 24 May 1915 only a few weeks after having gone to France for the first time and his name is recorded on the Menin Gate Memorial at Ypres. His widow subsequently remarried and is later listed as living in Belvedere, Kent.