Well the laws of probability strongly tell you so.
Both Robert and William are born in Atherstone (where there are baptism records for them for the right ages and to the same parents)
Both are in Walsall
Both are locksmiths
Both name John a hatter as their father (and both don't give deceased even though he probably was)
Both have a census connection with an Ann Boyard of roughly the same age who is probably their mother
Both have a rare surname (the modern database of the Office of National Statistics doesn't even recognise it as a surname that nowadays exists).
On the 1841 census there are two daughters. Mary born Staffordshire circa 1820 and Sarah not born Staffordshire circa 1830.
SARAH BOYARD
Birth: 20 JUL 1829
Christening: 01 FEB 1846 Atherstone Near Tamworth, Warwick,
Father: JOHN BOYARD
Mother: ANN
The only 1851 census entry I can find for Ann is in Atherstone.
HO107 2064 folio 354
Dog Lane Atherstone Warwickshire
Ann Boyard 66 Witherley, Leicestershire, House Servant Widow
There is this possible marriage for Sarah.
SARAH BOYARD
JOSEPH BOYARD
Marriage: 25 DEC 1852 Aston Juxta Birmingham, Warwick
1861 census RG9 2174 folio 50
44 Court Little Barr Street Aston Warwickshire
Joseph Boyard 31 Atherstone, Warwickshire, Head Married Tinplate worker
Sarah Boyard 31 Atherstone, Warwickshire, Wife Married
Ann Boyard 7 Aston, Warwickshire, Daughter
Harriet Boyard 6 Aston, Warwickshire, Daughter
I can only find one Sarah Boyard on the 1851 census.
HO107 2065 folio 269
Lutterworth Road Nuneaton Warwickshire
Sarah Boyarde 21 Atherstone, Warwickshire, Servant Unmarried
Tempting though this marriage is for Mary - William was a hatter and their daughter Sarah was subsequently born in Atherstone (so the laws of probability here said I was onto a sure thing!)
MARY BOYARD
WILLIAM WOODBURN
Marriage: 09 APR 1844 Saint Martin, Birmingham, Warwick
But I tracked Mary in 1851 to Leicestershire where she was born and where she was the daughter of Robert and Elizabeth Boyard also born Leicestershire!
Regards
Valda