There are currently about a dozen sisters under Bp Mckenna. Please remember him in your prayers for he is suffering from cancer. He is the last known(at least to me) pre-VII Dominican priest who did not say the NO or go along with the changes, besides being sedevacantist(materialiter/formaliter).
A question concerning the French SSPX affiliated Dominicans. Did any of them take their vows before a Dominican priest? I believe they didn't because they were younger and had no one to do this before. Thanks.