The Harford County Department of Parks and Recreation is trying to begin a Sunday senior baseball league for county residents 30 years of age or older (as of Aug. 1). Play would begin in June. Call Paul Yanney at 838-5174 or 879-5082. . . . Salisbury State will hold a one-day sports medicine and coaching clinic Jan. 19. Call Pat Lamboni at 543-6355. . . . Penn State, North Carolina and Ferrum have joined the National College Club Lacrosse League, bringing the total of teams in the new organization to 23. The general meeting of the league will be held Jan. 27 at Cole Field House in College Park at 2 p.m. Call commissioner Scott Frederick at 247-1428.