Hi Cathy,
I've found Samuel BARKER aged 20 living in Ropemaker Street, Cripplegate in 1841 but there's very little information in the entry. It just says aged 20, not born in county. No occupation is given. The entry is not even obviosuly split into households (could it have been a boarding house?). The two names above his are Henry HIDGER, 30, Porter and his wife Harriet, also 30.
The reference is: HO107/727/2 Page 33
Sorry I can't be of more help.
Regards,
Al