At marriage in 1887 the father of Ephraim is said to be Abraham, and on the 1871 census Ephraim is with widowed mother Eliza - the names are unusual, but I can't see a suitable marriage on free bmd.
On the 1861 census there are a couple of Abraham Locketts born and living in Staffordshire .... the Abraham Lockhart born in Bedfordshire I have eliminated as he marries Elizabeth Dainty in 1877, has a middle name Harland.