baɪ wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd fˈoːɹɾi nˈaɪn, pˈɑːɹtli æz ɐ sˈaɪd ɪfˈɛkt ʌvðə kˌælɪfˈoːɹniə ɡˈoʊld ɹˈʌʃ ænd ðə sˈɛɾəlmənt ʌv kˌælɪfˈoːɹniə, mˈeɪl tʊ ænd fɹʌm sˌæn fɹænsˈɪskoʊ hæd ɪŋkɹˈiːst ɡɹˈeɪtli.
By 1849, partly as a side effect of the California Gold Rush and the settlement of California, mail to and from San Francisco had increased greatly.