Gary Brierley, PhD (1975 – UIUC) – president of Doctor Mole Incorporated – will present on Construction of the Hoosac Tunnel; 1852 to 1876 .
Gary Brierley, PhD (1975 – UIUC) – president of Doctor Mole Incorporated – will present on Construction of the Hoosac Tunnel; 1852 to 1876 .