I have found this one in Lewisham in 1901 but cannot find one born in Islington
RG number: RG13 Piece: 559 Folio: 135 Page: 39
Address: 167, Stanstead Road, Lewisham
County: London
THORPE, William Head Married M 48 1853 Dairy Foreman Jevington Sussex
THORPE, Frances Wife Married F 50 1851 Clapham London
THORPE, William J Son Single M 24 1877 Clerk Woollen Merchant Forest Hill Kent
THORPE, Henry R Son Single M 20 1881 Draper's Assistant Forest Hill Kent
THORPE, Ernest W Son Single M 17 1884 Harness Maker Forest Hill Kent
THORPE, Albert E Son Single M 13 1888 Forest Hill Kent
THORPE, Grace Daughter Single F 10 1891 Forest Hill Kent