Cholera outbreaks and pandemics
That year, cholera was transmitted along the California, Mormon and Oregon Trails as 6,000 to 12,000 are believed to have died on their way to the California Gold Rush, Utah and Oregon in the cholera years of 1849–1855. It is believed more than 150,000 Americans died during the two pandemics between 1832 and 1849.
Oregon Historic Trails Advisory Council
In 1984, an Oregon Trail Advisory Council was formed by executive order of Governor Atiyeh. In 1988, the council published "Our Oregon Trail: A Report to the Governor". In December 1990, Governor Roberts responded to the report by supporting the founding of the Oregon Trail Coordinating Council (OTCC) as an independent nonprofit corporation, and called on the council to plan activities for the 1993 Oregon Trail sesquicentennial celebration. The OTCC had anticipated dissolving after the commemoration, but the sesquicentennial highlighted the success of its programs and the state continued to support the group while expanding its mandate to include other Oregon historic trails, so the OTCC postponed its dissolution until at least 1995. The same year, the state legislature passed the Oregon Historic Trails Bill, which provided for the OTCC and the Oregon State Parks and Recreation Department to enter into a cooperative agreement to develop a statewide historic trails program and recognized the "value and significance" of sixteen trails in Oregon. During the 1997 legislative session, however, a bill was passed that included a provision terminating the manufacture of the specialty Oregon Trail commemorative license plates that had been authorized in 1993 and 1995 to provide funding for the council. Faced with a shortage of funds, in 1998 the OTCC transferred its financial assets to the Oregon Community Foundation, establishing the Oregon Historic Trails Fund, which continues to support programs related to Oregon's historic trails.