Hi Geoff & Sandy. I thought that I had this family almost cracked but not now. I'll explain further down the page.
Adolphus W Grigson and Catherine Burke are missing from the 1861 census due to Adolphus serving with the 50th Reg. of Foot over in Ireland and then Ceylon when it was taken and then returning home for them to appear in the 1871 census. Adolphus returns to be a printer back in civi street.
In the 1841 census, Adolphus(age 17) is staying with Thomas William Grigson and Pheobe Grigson (Willington). Pheobe being Thomas's 2nd wife. In the parish of St. Pancras, Middlesex. Along with James(age 15), Samuel(age 3) & John(age 1).
I had originally thought that Adolphus and James were from Thomas's first marriage and as later on in 1851 Census James is listed as the son of Thomas and I presumed that Adolphus was his son also.
I have just today received a copy of the marriage cert for Adolphus and Catherine Burke and it lists Adolphus's father as William John Grigson, occupation "Drawings Master" (well I think that is what it says).
It would have been better and tidier if it had Adolphus's father as Thomas

but who said this game was easy.
SO.....My thoughts are that Thomas William Grigson(who Adolphus was staying with in 1841) is possibly the brother of William John Grigson (Adolphus's father according to his marriage cert)