Hi Twink
Think this is probably your Joseph Haynes aged 14.
1861 Census Kempston HO 107 1751 450 page 19
Town
Joseph Haynes Head Marr 51 Blacksmith bn Bedford Kempston
Elizabeth Wife Marr 47 Blacksmith's wife bn Cranfield
Rebekah 20 dau Straw Hat Manufacturer bn Kempston
Ann 18 Dau Dressmaker bn Kempston
JOSEPH 14 Blacksmith bn Kempston
Sarah 11 Lacemaker bn Kempston
John 9 Scholar bn Kempston
George 6 Scholar bn Kempston
All Saints, Kempston Parish register on fiche.
JOSEPH BARNARD HAYNES c 8.1.1837 son of Joseph & Elizabeth Haynes (also on IGI)
also Sarah bn 1.9.1839 & c 29.9.1839 (also on IGI)
& Henry bn 27.7.1838 & c 4.11.1838 (also on IGI)
found on IGI children of Joseph Haynes & Elizabeth
Harriott c 25.9.1835, John bn 9.4.1841 c 27.6.1841, George c 11.10,1844
George & Thomas both c 11.7.1843 father named as Joseph Barnard Dammoct Haynes & mother Elizabeth.
Joseph Haynes = Elizabeth Lineham 28.12.1819 Kempston
Earlier children - Rebecca Dymock Haynes c 3.11.1822, William c 4.5.1823, James c 31.12.1824, Henry & John both c 22.10.1827 all from IGI.
I didn't find Rebecca bn 1831 or Ann bn 1833 (from the census) but may have missed them on the IGI.
Check out IGI Batch nos C005052, C005054 & M005054. Joseph & Louisa's children are also on there.
Regards
criggy