I see the logic with his father being a Charles.

The 1841 census is always a vague on ages. For people over 15 the age should have been rounded down to the nearest multiple of 5, but this was not always done! Also relationships are not given, making allocating spouses and children difficult.

In Bettisfield there was a Charles Hinton, given age 55 (so possibly 55 to 59), possibly married to a Sarah (given age 50), with possible children Samuel (age 10) and Robert (age 8). But the next entries give another Charles Hinton, given age 25 (so possibly 25 to 29), possibly married to an Ann (given age 20), with possible children Sarah (age 6) and Ann (age 3), neither were born in Flintshire.

Was your James the son of the older Charles?

There is a James Hinton, age 15, and a George Hinton, age 14, working as farm servants on Sarah Hales' farm in Bettisfield. Possibly your James and his brother, but with incorrect ages?

The 1851 census shows the same two Charles' still living in Bettisfield. The two daughters of the younger Charles are shown as being born in Prees and Wem.

You are looking at an agricultural family living in areas (the Maelor and north Shropshire) which were (and still are) predominantly agricultural. I would guess that this family had roots in both Bettisfield and Wem?

P.S. Have you got a copy of that Hinton-Trevor marriage certificate from Hodnet? That should include a father's name.