Ok this is the best I can understand it so far:
Russell:
2 X heavenly classes
1 X Jewish earthly class + proselytes (Pre-pentecostal until present day)
1 X Christian earthly class (non-Bible Students or non-progressors)
Rutherford Bible Student era:
2 X heavenly classes
1 X Jewish earthly class + proselytes (Pre-pentecostal until present day)
1 X Christian earthly class (non-Bible Students or non-progressors) - unsure? Probably not. Post Russell and first World War the organization increasingly became sectarian and Rutherford anti-ecumenical. This sentiment had already germinated with Russell after the separation with his wife.
Rutherford Jehovah's Witness era:
1 X Heavenly class
1 X Earthly class
0 X Jewish earthly class