Charles Birchenough from Macclesfield

I have found Charles and Hannah Smith marriage in Maccelesfield Jun 1852. In the 1861 Census There are three children listed Thomas (1848), Mary (1855) and George (1851). I do not believe that Hannah is the mother of Thomas.

In the 1851 Census Charles (1822) and Thomas (1848) are living with George & Sarah Beath and their daughter Ann, also living in the same houshold are Thomas Lowe, John Rothwell, Francis Wilshaw and William Wilshaw.

Could Charles and Thomas be brothers?

Could their parents have died, if so wasn't their any family they could have lived with?

How can I find out their parents names?

Stephen Smith