AMERICANA FOLK — Singer-songwriter Mary Gauthier will perform American folk music at 7:30 tonight at the First Presbyterian Church, 823 S.E. Lane Ave., Roseburg. She specializes in Americana folk music. Tickets are $15 at the door or $12 in advance. Advance tickets can be purchased at Absolute Sound & Music or While Away Books. A $2 discount is offered for seniors 62 and older and children 12 and younger. 541-670-9120. WELCOME THE SEASON — The 38th annual Spring Fair kicks off from 1 to 9 p.m. today at the Douglas County Fairgrounds, 2110 Frear St., Roseburg. The fair will continue …