I have been racking my brains where Shilverton could be .It could easily have been mis-transcribed but I have found someome else with Shilverton as birth place.

A John Walden. I know it does not tell us where it was but does it mean it did exist?
1851
Piece:
1860
Folio:
214
Page:
9
WALDON, Edward Head Married M 38 1813 Dairy Man
Powerstock Dorset
WALDON, Mary A Wife Married F 36 1815 Dairy Man Wife
b Burton Bradstock
WALDON, Elizabeth Daughter F 11 1840 Scholar
b Piddle Hinton
WALDON, John Son M 10 1841 Scholar
b Shilverton Dorset
WALDON, Robert Son M 8 1843 Scholar
b Powerstock Dorset
WALDON, Francis Son M 7 1844 Scholar
b Powerstock
BUGLER, Jane Servant Unmarried F 17 1834 General Servant
b Burton Bradstock
DICKER, Peter Servant Unmarried M 17 1834 Cowherd
b Powerstock