Josiah and Susan Washbourne Among the historic rows of Polson Cemetery in Delaware County, a pair of stones mark the resting place of Josiah Woodward Washbourne and his wife, Susan Catherine Ridge Washbourne. Born on July 15, 1819, at the Old Dwight Mission in what was then the Cherokee Reservation of Arkansas Territory, Josiah was the son of the Reverend Cephas Washburn, the Vermont-born Presbyterian missionary who helped establish that early school and preaching station amo