<a href="https://en.wikipedia.org/wiki/pl:Teofil_Sadkowski" class="extiw" title="w:pl:Teofil Sadkowski">Teofil Sadkowski</a>, PhD, born 1873, lost while <a href="//commons.wikimedia.org/wiki/Warsaw_Uprising" title="Warsaw Uprising">Warsaw Uprising</a> 1944. <a rel="nofollow" class="external text" href="http://www.studyrussian.com/MGU/russian-education-system.html">Kandidat nauk</a>, Polish mathematician, specialities: <a href="https://en.wikipedia.org/wiki/www:Probability" class="extiw" title="w:www:Probability">Probability</a>, <a href="https://en.wikipedia.org/wiki/www:Stochastic_process" class="extiw" title="w:www:Stochastic process">Stochastic process</a>, Petersburg University, Russia. Before Great War worked for insurance companies. After liberation in 1918 Teofil Sadkowski was owner of [Mens College for Mathematics and Natural Sciences] in Warsaw, Poland. See: <a rel="nofollow" class="external text" href="http://memory.loc.gov/cgi-bin/ampage?collId=pldec&amp;fileName=/009/pldec009.db&amp;recNum=84&amp;itemLink=S?intldl/pldec:@field(TITLE+@od1(Meskie+8-ioklasowe+Gimnazjum+Matematyczno-Przyrodnicze+T++Sadkowskiego+w+Warsawie))">Polish Declarations of Admiration and Friendship for the United States</a>. Lost while <a href="//commons.wikimedia.org/wiki/Warsaw_Uprising" title="Warsaw Uprising">Warsaw Uprising</a>, 1944 - See:<a rel="nofollow" class="external autonumber" href="https://www.youtube.com/watch?v=LXHuzSbAH6U">[1]</a>
created by J. Trzcinski, Czestochowa, Poland,  about 1906. Image recovered from family archive and revitalized by myslf.
authors family archive