One student, every division
Overlap is the norm here, not an anomaly. Everyone below carries more than one division or work-study team at the same time.
An artist need not be enrolled in the class. This roster is its own population — it is never derived from the division rosters.
Paste a roster
Paste a WhatsApp group's member list — phone numbers, ~ prefixes and
chatter and all. Nothing is written until you press the second button, and every
line you paste is accounted for: matched, unmatched, or ignored with a reason.
Name check
Paste any list of names — a spreadsheet column, a task board's assignees. Anything that matches nobody here is a stale local list somewhere else, and that is almost always where "two people, same human" comes from.