Dorr and M. P. P. Roseni

Dorr and M. P. P. Roseni are not widely recognized figures in general knowledge, and it seems their names might not be associated with notable events or contributions in common discourse. However, if you're referencing a specific context or detail about them—perhaps related to a field such as literature, science, or another area—please provide more information. This will help clarify their significance and enable a more accurate response tailored to their context.