Thanks for the information

In the 1861 census the surname is transcribed as McConney, but a look at the original document shows it should be McConvey. Patrick is listed with Sarah as his mother age 50 putting her DOB aroub 1811.
In the 1871 census it lists a Sarah as being 70 putting a DOB abt 1801. This Sarah is listed as his daughter. The original is not too clear, the word daughter is clear, but the age could be 70 or 7yrs or 7 months, I am in the process of hedging my bets and plumping for the middle option. The second child Sarah appears on the 1881 census as age 7.

If anyone can help clarify this I would be grateful