Generally lower-cased, but capitalize specific Citadel classes in correspondence, recognition pieces, and other references.
The Citadel Class of 1973 presented a significant gift at Homecoming.
Each graduating Citadel class believes itself to be the last of the Old Corps.
Note: “Class” is a collective noun. Though it consists of many people, a class is singular in grammatical usage.
Despite a late start to its fundraising campaign, the Class of 1986 reached its goal.