I have a John Lock(born 1785/1786) married to Elizabeth? living in Shafleet IOW in 1813 when a daughter Elizabeth was baptised; other offspring were Charlotte 1818 John 1820 George 1823 and Maria 1825; and in 1851 Census they are living in Newport IOW and John Lock (senior) gives his birth place as "Hustlebury" Hants. Given the regional accent I think this is Owlsbury just north of Winchester Hants. I looked up the parish records at Winchester RO and in Owlsbury in 1695 there is a John Lock with a wife Mary and sons John Michael, Thomas and George. In April 1777 James Lock married Mary Glasspole and their son William was bpt 1 june 1777 Do you know where your ancestor William was born? Is he still alive When the 1851 Census was taken?