Hi
Atcham IS in Shropshire, not Montgomeryshire. It's just on the outskirts of Shrewsbury about a mile or so.
Is this your Jeffrey in the 1881 census:
Household:
Name Relation Marital Status Gender Age Birthplace Occupation Disability
George WILCOX Head W Male 60 Birmm, Warwick, England Chemist
Rose WILCOX Daur U Female 26 Birmm, Warwick, England
Louisa WILCOX Daur U Female 24 Birmm, Warwick, England
Clement W. WILCOX Son U Male 21 Birmm, Warwick, England Tailor
Alfred E. WILCOX Son U Male 17 Birmm, Warwick, England Brass Founder
Sarah A. WILCOX Sister In Law U Female 60 Birmm, Warwick, England
Arthur W. RAWLINS Assistant U Male 27 Hanford, Stafford, England Chemists Asst
Jeffery POOLE Assistant U Male 18 Rowton, Shropshire, England Chemists Asst
George W. GERMAN Apprentice U Male 16 Edengate, Stafford, England Chemists Apprentice
Ellen EDWARDS Serv U Female 34 Abberley, Worcester, England Domestic Servant
If it is it states his birthplace as Rowton, Shropshire. Rowton is approx. 6 miles west of Shrewsbury. Maybe he lied about his birthplace?
Jan