Welcome to the Class of 2018! - The 471 members of the Class of 2018 arrive on the Hill and begin New Student Orientation this weekend.
semicolon in a series
To clarify in a series, use the semicolon before and: "Among the speakers were Doug Weldon, the Stone Professor of Psychology; Donald Carter, chief diversity officer and professor of Africana studies; and Lydia Hamessley, associate professor of music." Place semicolons outside of quotation marks.
SOURCE: Hamilton College Editorial Style Guide