Philanthropist H.F. "Gerry" Lenfest will give $750,000 to city campaigns to increase college graduation rates, Mayor Nutter announced Monday. Through the foundations of Lenfest and his wife, Marguerite, $200,000 in each of the next three years will go to a mayoral initiative that provides resources through a central website - www.phillygoes2college.com - to help students plan for and finance higher education and connect them with mentors to see them through.