Johannes Peter Müller
In 1852, Montgomery studied medicine at the University of Heidelberg, where he did lab work under Robert Bunsen and came under the influence of Christian Kapp, Ludwig Andreas Feuerbach and Jacob Moleschott. He later attended lectures by Johannes Peter Müller at the University of Berlin during his 1855–1856 enrollment. While studying in Bonn 1856–1857, he attended influential lectures of Hermann von Helmholtz.