On March 19, Lonergan testified in front of the grand jury to having received $169,350 from Ruef that was transferred to the Supervisors. He and the now-immunized Supervisors detailed the source of the more than $200,000 received by the board members, naming the more than 20 board members of the several corporations who had contributed bribery funds, who were then in turn compelled to testify. Calhoun of United Railroads was one of the few holdouts: he refused to testify and exercised his right against self-incrimination.
