1911 census has Alfred Day (labourer) age 20, born Deptford, Kent living with parents and siblings in Deptford.
Parents Albert (house builder & painter) and Elizabeth married 21 years, both born Deptford.
children: Alfred 20, Jane 14, Elizabeth 9, Charles 6, Florence 3.
The same family in 1901 census also has a child Phillip age 7