 In January 2005, San Francisco's Board of Supervisor's voted unanimously on Dalessandro's resolution to set aside the 1906 death count of 478, which had stood since a month after the disaster and recognized the figure of "3,000 plus" that was the result of four decades of research by San Francisco Historian Emeritus Gladys Hansen.The resolution made worldwide news.Dalessandro maintains, as of 2019, that the real death count from the disaster is more likely between 6,000 and 10,000.