Two complete black belt families

We are very lucky to have not one but two complete families that are made up of black belts. We have the Fosters and the now the Duplocks. Mrs Duplock and Mr. Duplock (ginger) passed this summer just gone making their family completely black (in the belt department). The Fosters have been black (in the belt dept) for some time now with Miss Foster passing in 2016. Mr. Foster was the first to get to black belt way back in 1989 and is currently 5th Dan.