In the July to August 1917 birth index Leslie Brown, mother’s maiden name Brown, Lambeth district , London, volume 1d, page 318

Parish Records Little Saint Peter, Claremont Way, Barnet, London
Born June 26 1917, baptism July 18 1917 Leslie Brown, parents Rose Brown, abode St. Helen’s Home, ceremony W. F. Sommerfeld, Assistant Curate
[There are 3 baptisms that same day with only the mother’s name listed and all from St. Helen’s Home]

In the 1921 census 14 Monarch Hill, Upper Halling, Strode, Kent
Head William Sydney Knott, age 30 years no months, married, born Halling, Kent, fuel gang labourer - Lee Sons Cement Works, Halling
Wife Rose Knott, age 31 years 6 months, married, born Battersea, London, house hold duties
Father in Law Edwin Philip Brown, age 73 years, married, born St. Alban’s, Herefordshire, retired grocer
Mother in Law Rose Brown, age 68, married, born Manningtree, Essex, home duties
Step Child Leslie Brown, age 3 years 11 months, male, father dead, born Westminster, London