| Collection | Civil Registers of Rhu | 
| Record type | Marriage | 
| Name | Harold John Cornwell | 
| Marriage | 14 Jul 1939 | 
| Place | The Manse, Shandon, Rhu, Dunbarton | 
| Age | 31 Years | 
| Gender | M | 
| Status | Bachelor | 
| Residence | North Lodge, Shandon House, Shandon | 
| Occupation | Locomotive Engineer | 
| Father's name | Thomas Cornwell | 
| Father's occupation | Butler | 
| Mother's name | Catherine Phillip | 
| Spouse's name | Euphemia Blackstock | 
| Spouse's age | 31 Years | 
| Spouse's gender | F | 
| Spouse's status | Spinster | 
| Spouse's residence | Shandon, Innellan | 
| Spouse's father | Duncan Blackstock   Farmer (Retired) | 
| Spouse's father's occupation | Farmer (Retired) | 
| Spouse's mother | Euphemia Hyslop (Deceased)    | 
| Marriage church | Church of Scotland | 
| Marriage witnesses | Christina Crawford, Bank Cottage, Dunoon, Robert Walker, Glasgow Road, Dunbarton |