I know he had one son (at least) called John. Unfortunately there were dozens of John Ralphs living around Toll End, Nock Street, Lower Gornley in the mid-1800s.
I can't identify the particular John I want other than he turns up on various children's marriage certificates as a Boatman. As Thomas lived in Nock Street, just round the corner from Toll End I'm guessing he was a boatman or canal worker of some kind, not a tinner or a miner. His granddaughter, Emma (for whom there are no records on FreeReg despite me having a paper copy of her marriage) married Thomas Wright who was another boatman like his father.
Most Ralphs in that area of Tipton were boatpeople. I wish I could find Thomas on an earlier census - 1841 or 1851 but not luck as yet.