Start with
http://www.rootschat.com/forum/index.php/topic,132982.0.htmlPiecing together what has been written on this thread
Marriages Sep 1859
Catling John Frederick Bethnal Gn 1c 583
Ringrose Mary Eliza Bethnal Gn. 1c 583
and
Marriages Jun 1880
Ward Joseph Shoreditch 1c 185
Catling Caroline Sarah G Shoreditch 1c 185
1861 census RG9 194 folio 37
25 Bowling Green Lane Clerkenwell St James Middlesex
John F Catling 26 St Lukes, Middlesex, Head Married Printer
Eliza Catling 22 Hertfordshire, Wife Married
Caroline Catling 5mths Clerkenwell, Middlesex, Daughter
Birth
December 1860 Clerkenwell Volume 1b page 514
Caroline Sarah Grace Catling
1871 census RG10 462 folio 4
24 Mary Street St Leonard Shoreditch London
Mary Catlin 32 Hertfordshire, Head Married Charwoman
Caroline Catlin 10 Clerkenwell Middlesex Daughter
John Catlin 8 Clerkenwell Middlesex Son
Mary Catlin 5 Shoreditch Middlesex Daughter
Charles Catlin Bethnal Green 3 Son
1881 census RG11 395 folio 92
Joy Street Shoreditch London
Mary Catling 42 Hertfordshire, Head Married Charwoman
John Catling 18 Clerkenwell, Middlesex, Son
Chas. Catling 13 Bethnal Green, Middlesex, Son
What information does Sarah Caroline Grace Catling give about her father on her marriage? Does it match the information given on the 1861 census? If it does, along with the match of the 1891 census address with the address given on Charles Ringrose's army papers (you need to prove the marriage is the same couple as on the 1891 census), I would think that would present strong evidence for them being brother and sister- though not necessarily full siblings
Regards
Valda