I am searching for info on Dediulin, Poliosky, Zelmitsem. Corwin-Poliosky(Pohosky etc) and N.W.Dediulin came to usa from Nowgorod in 1891. Dediulin Brother who was an orphan was raised by his Uncle A.F. Zelmitsem a Professor, Department of Bacteriology and Hygiene of meat Harokvskogo Veterinary Institute. A.V. Dediulin was later a Director of the Kharkov institute in the Ukraine and died in 1924. He was well known throughout Europe for his work in Veterinary medicine. Name is spelled with several variations. Cyrillic ДЕДЮЛИН АЛЕКСАНДР ВАСИЛЬЕВИЧ.