Hi Bettty,
There is only one John Broadhurst on the 1861 census being born in Radnore Knighton.
Isaac Broadhurst b 1830 Hereford Labourer
Ellin ( actual spelling ) 1827 Waterford
Isaac 1849 Ludlow
Sophia 1852 Abergavenny
John 1858 Radnore Knighton
Richard 1861 as above
Dot