If we use the Anglo-Saxon FUTHORC ( fuTork) Aedwin Cacabred would like like this.
The only real difference is in the C and K sounding letters. The Anglo-saxon FUTHORC developed more letters (33) to cope with the new sounds. So C was added as a c,.
K stayed as the symbol k and k
This is the most likely Rune system used in England around 1109. Although I think it is no coincidence that Cacabred had two C's in the Ely pipe Rolls given that the Elder and Younger FUTHARK only had k to represent C an K.
This points to a German/ Scandanavian origin for the family ancestry of Aedwin Cacabred. If he was related to Hereward this would be correct as this family is said to be of Danish ancestry and so would have used one of the FUTHARK's and possibly not the Anglo-Saxon FUTHORC!
Through DNA test's done so far. The results show a Danish/ Saxon ancestry for 2 Cakebread family lines.