Professor Walther Firle

Luther's Hymn; 'Ein' Feste Burg ist unser Gott' [A Safe Stronghold Our God is Still] Professor Walther Firle

The Duet Walther Firle

Frederick Frobel Teaching A Class Anonymous

Professor Friedrich Mueller Louis Kolitz

Portrait of the composer Friedrich von Flotow, 1880 Anonymous

Portrait of Friederich Froebel Anonymous

Professor Frederick Maximilian Müller, Ll.D. Anonymous

Frederick Max Muller, Professor of Comparative Philology at Oxford University Lock & Whitfield

Portrait of the composer Friedrich von Flotow, 1856 Anonymous

Portrait of Friedrich Schneider, 1852 Gustav Völkerling

Friedrich Wilhelm I, Elector of Brandenburg German School