Georgi Obretenov 1849–1876 Source: Wikimedia Commons About Georgi Obretenov Bulgarian revolutionary People from the Same Era Otto Biermann 1858–1909 mathematician, pedagogue, teacher Cieszyn George Whiting 1840–1923 classical composer, organist Holliston Manuel de Sousa Avides 1854–1920 physician Porto Charles Thomas Walker 1858–1921 community leader, preacher Richmond County David Beghè 1854–1933 painter Calice al Cornoviglio Pieter Anne Haaxman 1847–1935 art critic, journalist Delft