It seems possible that John Cockram, ( father of John b1800) was christened 16 July 1758, Molland, Devon, the son of Richard Cockram (England Births & Christenings 1538-1975). His death is recorded as 16 July 1840, Molland.
My view these are most likely there children, all christening dates unfortunately, rather than births, all Molland:
Edward 21 Feb. 1791
John 5 March 1793
Mary 22 December 1793
Elizabeth 15 August 1795
Joan 15 May 1796
Sally 12 May 1799
John 14 December 1800
Richard 20 March 1804
Frances 7 January 1807
One further Betty, christened 24 July 1791, is the only that gives me any concern, as it is close to there first born, Edward. Perhaps though, Edward's christening was sometime after his birth!