ɪn ɐdˈɪʃən tə ðə hˈɑːɹdwɛɹ stˈoːɹ, wˌɪtʃ wʌz kˈɑːks pɹˈaɪmɚɹi bˈɪznəs ˈɪntɹɛst, hiː wʌz ˈɔːlsoʊ pɹˈɛzɪdənt ʌvðə kˈɑːk ænd lˈoʊbɚ kˈʌmpəni, wˌɪtʃ mˌænjuːfˈæktʃɚd wˈʊdənwˌɛɹ ænd səplˈaɪz.
In addition to the hardware store, which was Koch's primary business interest, he was also president of the Koch & Loeber Company, which manufactured woodenware and supplies.