Hello
I have found these baptisms for you on
www.freereg.org.uk - all Sible Hedingham
William OSBORN 25 May 1817 parents William & Lydia
Thomas OSBORNE 15 Feb 1818 ditto
Rachel OSBORN 30 Apr 1820 ditto
Elizabeth OSBORN 25 May 1822 ditto
Susan OSBORN 30 May 1824 ditto
No obvious marriage in Sible Hedingham on freereg. I have also checked the Suffolk Marriage Index 1813-37 for you no William OSBORN or similar to a Lydia during that period in Suffolk recorded on there.
Keziah