All of us genealogists are "cheeky"--it's a requirement
I haven't fleshed out the lines of the brothers.
For Robert all I have is:
1851 Douglas House of Industry
Robert Cain infirm 73 journeyman shoemaker Malew
For Thomas all I have is:
1851 Douglas 7 Murkles Gate
Thomas widow 71 tailor b Ballasalla,
Margaret Jane dau 26 dressmaker b Douglas