Edited because I found a solution
Here is the test data:
Employees (companyID, LastName)
001, PersonA
002, PersonB
003, PersonC
Shifts (shiftID, Driver, Loader, ShiftDuration,DaySheetID)
01, 001 (PersonA), 002 (PersonB), 01:30, 1
02, 003 (PersonC), 001 (PersonA), 00:45, 2
03, 002 (PersonB)...