Honorable Katherine E. Tennyson Multnomah County Circuit Court, Portland The Honorable Katherine E. Tennyson, Multnomah County Circuit Court, Portland. Judge Tennyson is a member of the Family Law Department, which is a unified family court. Since July 2002, she has heard cases involving probate and protective proceedings, dissolution, custody, parenting time, support enforcement, domestic violence, juvenile delinquency and dependency, termination of parental rights, and probate. Judge Tennyson became the Chief Probate Judge for the county in January 2007. Judge Tennyson is a member of the Board of Trustees of the National Council of Juvenile and Family Court Judges. She is admitted to practice law in both Oregon and Washington. (05/12)