This may be a bit off the wall but it looks like Thornson

Boarding at the Castle Vaults Inn Shrewsbury 1871 a Farmers Son from Newnham Glos aged 20

Name: Charles Thomson
Age: 20
Estimated birth year: abt 1851
Relation: Unmarried

Source information: RG10/2769
Registration district: Atcham
Sub-registration district: St Mary
ED, institution, or vessel: 2
Folio: 38
Page: 11
Household schedule number: 60