Bonanza

Season 1, Episode 8

Episode Title: The Phillip Diedesheimer Story

Air Date: 1959-10-31

Overview:

Adam and Hoss assist a German engineer in developing the concept of "square set timbering" in the mines. Based on fact, and the first episode not to include all four Cartwrights. Hoss refers to the character, Emily, with whom he was in love with in, "The Newcomers".