In the October to December 1892 birth index Catherine [as spelled] Lydia Hawkes, Pancras, London, volume 1b, page 2.

Parish records St. Mary Magdalene, St. Pancras, London
Baptism September 16, 1892 Katherine Lydia Hawkes, parents John James Hawkes and Isabella Hawkes, residence 12 Firsy? Place, father is a painter.

In the 1911 census 39 Bangor Street, Notting Hill, London.
Head John James Hawks [as spelled], age 58, house painter, worker, born Hove, Brighton. [However his name is crossed out and the relationship by Isabella’s name wife is crossed out and replaced with head. Perhaps the form was filled in in advance and either John was away that day or perhaps he died.]
Isabella Hawks, age 58, married 25 years, 1 child born alive, still living, born London.
Daughter Katherine Lydia Hawks, age 18, general servant domestic, worker, born St. Pancras, London.
The house has 2 rooms.

In the July 1992 death index Katherine Lydia Mills, born August 27, 1892, age 99, Surrey Northern District, Surrey, volume 17, page 384.

Parish records Saint Marylebone, Westminster, Middlesex. William Paritt Mills, baptism September 19, 1868, born October 3, 1867, father George Mills, mother Jemima Mills, Abode 1a Upper Rathtone? Place, father’s occupation carpenter

In the 1871 census civil parish St. Pancras, ecclesiastical parish St Pancras and St James, London, registration district Pancras, sub district Somers Town living at 18 Drummond St.
George Mills age 41, carpenter, born at Salthill, Berkshire [Salthill seems to move around??].
Wife Jemima Mills age 43 born in London.
Daughter Jemima R. Mills age 14, born Hounslow.
Daughter Emily Mills age 9, born Hounslow.
Son William Mills age 4 born Hounslow.
Sister Rosa Sharply widow? age 26, dressmaker, born at Hounslow.
Her son William Sharply age 4, born Hounslow.

In the 1881 census civil parish Hammersmith, London, registration district Fulham, sub district St. Paul Hammersmith living at 4 River Terrace.
George Mills age 51, carpenter, born Salt Hill, Middlesex. [must be an error]
Wife Jemima age 53 born Hounslow, Middlesex.
Daughter Emily Mills age 19, Plumassier, born Norbiters?, Surrey.
Son William Mills age 13 born St Pancras, Middlesex.
Son Edwin age 8 born London, Middlesex.
Son in Law James Faulkner age 22 [or possibly 24] Carpenter, born at Hounslow.
His wife Rosa Faulkner age 24, born in London.
George’s grandson George Faulkner age 1 born Hounslow.
Lodger Jesse Burch unmarried, carpenter, age 50 born Hounslow.

In the 1891 census 4 River Terrace Fulham district, sub district St Paul Hammersmith, London.
George Mills, head, age 61, carpenter, born Salthill, Berks.
Wife Jemima Mills, age 63, born St, Georges London.
Son William P. Mills, single, age 23, clark to coach maker, Norbiton, Surrey.
Son Edwin F Mills, age 15, clark to coach maker, born St. Pancras.
Lodger Jasper Gitts, single, age 45, carpenter, born Salsbury, Wiltshire.

In the July to September 1893 marriage index William Pavitt Mills and Rosanna Lydia Frith, Fulham, London, volume 1a, page 509.

In the 1901 census 50 Aden? Grove, registration district Hackney, sub district Stoke Newington.
Head, William P Mills, age 33, commercial clerk, born Norbiton, Surrey.
Wife Roseanne L. Mills, age 35, born Kensington, London.
Son William E. F. Mills, age 6, born Stoke Newington, London.
Lodger Mary Newman, age 79, born St. Pancras.

In the 1911 census 24 Augustus Road, Hammersmith W, London.
Head William Mills, age 43, clerk, jobmaster, born Norbiton, Kingston.
Wife Roseanna Mills, married 17 years, 1 child born alive, still living, born Bayswater, London.
Son William Mills, age 16, clerk, railway boy, born Stoke Newington, London.

Parish Records St Mark, Nottinghill, Kensington and Chelsea, London marriage
September twenty ninth, 1919 William Paritt Mills, age 51, Widower, managing clerk, 156 Lancaster Road, father George Mills, deceased, builder’s foreman.
Katherine Lydia Hawkes, age 27, spinster, housekeeper, 156 Lancaster Road, father John James Hawkes (Deceased), painter. By Banns L Hodgson (Vicar) In the presence of William Mathews and Isabbelle Hawkes.

London England Electoral Registers 1924, 1930, 1939
12 Scampston Mews, Kensington, London
William Pavitt Mills
Katherine Lydia Mills

1939 England and Wales Register
The Rectory, East Retford, Nottinghamshire
1. Edward M. Mulliken, born January 14 1885, married, clergyman Church of England, Major Indian Army Retired
2. Ruby G. Mulliken, born October 26 1887, married, unpaid domestic duties
3. William P. Mills, born October 3 1868 [should be 1867], married, accountant (retired)
4. Katherine L. Mills, born August 27 1892, married, domestic worker

London England Electoral Registers 1954, 1958
92 Highlever Road, Kensington, London
William P. Mills
Katherine Lydia Mills