This is rather long for a summary but here goes:
Address: Great Sutton St, Clerkenwell (from birth cert)
Children of Louis Nicholas and Josephine Valable
Reine Josephine 1805 - 1890
Louis Nicholas b 1797 (st Geo Hanover Sq) Death: 1875 Kensington?(Shovean) aged 77
Children of Louis Nicholas and Catherine
Louis Nicholas 1833 (bap 1844 St Marylebone) died in Wilton Somerset in 1912
Josephine Elizabeth 1822
Mary Ann Jane 1830
Henry 1833 (bap ditto - twin? b week earlier!)
1841 census HO107 460/7 folio 15
Milton Gravesend Kent
Cathene Choveaux 40 Shopkeeper
Josephine Choveaux 15
Mary Choveaux 11
Henry Choveaux 5
Frederick Choveaux 3
none born Kent
Death of Catherine?
Marriages Sep 1844
CHOVEAUX Lewis Nicholas St Geo Han Sqr 1 45
WARD Amelia Caroline St Geo Han Sq'r 1 45
Children of Louis Nicholas and Amelia Caroline WARD (married Sep 1844 St Geo Hanover Sq)
Rosa Ann 1849 Camberwell - 1856 Westminster
Lucy Eliza 1852 - 1894
Katherine Amelia 1845
1851 census HO107 1582 folio ?
290 Albany Road Camberwell
Louis N Cheveang 54 Head Married Engineer St Georges Middlesex
Amelia C Cheveang 32 Wife Married St Georges Middlesex
Louis M Cheveang 17 Son Clerk in an ordnance Off Southwark Surrey
Henry Cheveang 15 Son Clerk in railway Marylebone Middlesex
Rosa A Cheveang 2 Daughter Camberwell Surrey
Where is Louis junior in 1851?
Marriage Camberwell 1d 683 Sep quarter 1854
CHOVEAUX Louis Nicholas (junior - see 1861 census below)
FARRELL Ann Clara
HORSLEY Thomas
RYCROFT Henry
1861 census RG9/370/57/26 - Louis senior
CHEVIAUX
Louis Nicholas H M 64 - shopkeeper fancy rebartory? - Middx N Audley St
Amelia C W M 42 - do St George
Catharine A dau 15 - Middx St John Wood
William A son 13 - Surrey Camberwell
Lucy E dau 8 - Surrey Camberwell
Francon/ Jeancon G son 3 - Middx White??le?
Address: 2 Farnboro Place, Battersea, Surrey
Meanwhile
Mother Jane nee WATKINS b Knighton, Radnorshire - she's on censuses in Knighton
Children (father is Louis Nicholas - but which one? Occupation globe glass blower/ cutter)
1860 Louis George
1865 Edward John b ? birth cert held?
1868 Alfred William
1861 census RG9/
CHOVEAUX
Louis N Head Marr 27 - clerk in war office Pall Mall - Southwark Surrey
Ann C W M 26 - Middx Kingsland
Clara J T dau 5 - Surrey Camberwell
Isabelle A dau 12 - do
Florence dau 9 months - do
+ 2 servants
Address 7 Park St, Camberwell
1871 census - RG10/842/75/15
CHEVEAUX
Louis N Head Marr 37 - clerk in war office - Southwark Surrey
Ann? C Wife Marr 36 - Middx Kingsland
Clara J T dau 15 - scholar - Surrey Camberwell
Isabelle A dau 12 - do - do
Rose B dau 8 - do - do
Louis N son 6 - do - do
Walter J son 5 - do - do
Jessie H dau 3 - do
Mary A dau 11 mo - do + 2 servants
Louis senior dies (?) 1875
Where is Louis junior after 1871?
1881 census RG11/813/21/36
Isabella and all eight of the younger children in Croydon (Brigstock Road Enfield Lodge) - no parents but listed as "daughter"
Several other censuses and some BMDs to find yet!