Help about orphanages London 1932

[Marie VINCENT]

Hello ! I'm French and I'm looking for information about Francis HENRY . Francis was born in Mitcham on 2 september 1923 , his father ( Auguste HENRY ) was french , his mother ( Kate KETTLEWHITE ) was english. The family came to live in France about 1930 and returned in 1931 or 1932 to London . His parents became ill and are hospitalized in the french hospital in London . I do'nt know  the address where they lived in 1932 and in which neighborhood . Francis was placed in the orphanage St Vincent de Paul in 1932 ( I don't know which and there are more 12 St Vincent de Paul orphanages in London ) then he was placed St Joseph's Franciscan Convent in Littlehampton untill 1933 .
J hope to find details about this period of his life because I write my family history . Can you help me ? Thank you and sorry , my english langage is bad . Marie