By Kaden
Robert Melvin Decker (American, 1847-1921)
Jozef Chelmonski (Polish, 1849 – 1914)
Jan Stanislawski (Polish, 1860-1907)
Jan Ciągliński (Polish, 1858 - 1913)
Friedrich Joseph Nicolai Heydendahl (German, 1844-1906)
Władysław Ślewiński (Polish, 1854–1918)