Hi Mick - This seems to be the nearest. Possibly Lilian was born in Southampton and registered in London.

FREDERICK HENRY PRESTON -
Births Dec 1867 PRESTON Frederick Henry Lymington 2b 524
(near Southampton, Hampshire)

1891 Census: Frederick H Preston 23 Solicitor Clerk Essex 1868 bMilton, Hampshire (New Milton, nr Lymington)

LILLIAN MAUD MARCH PRESTON -
Births Sep 1879 MARCH Female West Ham (London) 4a 99
1901 Census: Lilian M Knight 22 London 1879 bSouthampton, Hampshire

Good luck.Sue