1911 census reveals a missing Ephgrave child death

The additional information in the 1911 census has opened up a new mystery relating to the children of my great-grandparents Frederick Ephgrave and Phoebe (nee Gibson).

The census return shows that they had been married 16 years by 1911 and had had nine children in that time. Six were still living (and are living with their parents in 1911) and three had died. A family paper given me by my uncle showed that two of their children had died in early infancy: Frederick was said to have been born 19 October 1900 and died seven months later on 21 May 1901. May/Mary Ann lived only two days: born on 17 June 1904, and died on the 19 June of the same year. Their first child, Rosa, was born in December 1896, just six months after her parents' marriage. The next in line was Clara, born three years later in 1899. So perhaps the missing child was born and died between 1897 and 1899.

The 1911 census for the family shows:

Frederick Ephgrave, Head, 39, Married, Dairy Machinest employed in the dairy industry and born Luton, Bedfordshire
Phoebe Ephrave, Wife, 35, Married, born Stoke Newington, London
Rose Ephgrave, Daughter, 15, Single, born South Hornsey, London
Clara Ephgrave, Daughter, 12, at School, born Hackney, London
Jessie Ephgrave, Daughter, 9, at School, born Hackney, London
Alice Ephgrave, Daughter, 6, at School, born South Hornsey, London
Edward Ephgrave, Son, 5, at School, born South Hornsey, London
Elsie Ephgrave, Daughter, two months, born Lee, Kent

2 Males
6 Females
8 Persons

Living in four rooms at 6 Boones St, High Rd, Lee, SE

Frederick Ephgrave writes an elegant hand and signs the schedule.