Like Jane I can't see a marriage but there are other children baptised at Nottingham St Mary which may or may not be the same couple. It's quite a sad story
I'll list them all in the order name, date, abode and father's occupation
William 09/08/1816 Toll House Hill tailor
Dinah 03/07/1817 Clinton St tailor buried 12/07/1817 age 1 month
John 31/07/1818 Fine Street tailor buried 28/12/1818 age 5 months*
Joseph 27/11/1825 Lincoln Street framesmith
Ann 05/09/1827 Lincoln Street tailor buried 02/06/1829 age 1
Caroline 20/02/1831 Harris' Place tailor
Robert 18/08/1833 Brook St plumber buried 30/11/1834 age 16 months
Harriet 06/12/1835 Independant Hill Glazier buried 04/01/1837 age 1
Also an earlier one at Radford St Peter
Sarah 06/11/1814 Radford tailor
More burials at Nottingham St Mary - abode given as Lincoln Street
Elizabeth 08/02/1824 age 1
Joseph 29/07/1825 age 4
Susannah 25/05/1826 age 2
This suggests that the gap in the baptism dates means they moved briefly out of St Mary's and had some children elsewhere
Sarah Norman buried 03/05/1831 age 36
Marriage of William Norman to Sarah Titterton Nottingham St Mary 02/08/1831. So either a second marriage or those last two baptisms belong to a different William and Sarah
* It's possible this John died and a second John was born shortly afterwards?