I do not know a great deal about the Calver's in England i know they came from Bedfield Suffolk. My ggggrandmother came out in the early 1820's with her husband. They settled in Talbot (near Ballarat) Victoria.
I have not found out if she had any Brothers or Sisters as yet but guss she would of had. I will see what i can find on them and get back to you.
If you find you are connected to them i can give you a run down on the Australian side of the calver family.