ɪn nˈaɪntiːnhˈʌndɹɪd tˈuː, ɡˈɪbz pˈɜːtʃɪst ɐ pɹˈɑːpɚɾi æt nˈaɪnhˈʌndɹɪd tˈuː tˈiː stɹˈiːt, ˌɛndˈʌbəljˌuː ɪn wˈɑːʃɪŋtən, dˈiː.sˈiː., æt wˌɪtʃ hɪz dˈɔːɾɚ, hˈæɹiət ɡˈɪbz mˈɑːɹʃəl, ɹˈæn ðə wˈɑːʃɪŋtən kənsˈɜːvətˌoːɹi ʌv mjˈuːzɪk, wˈʌn ʌvðə mˈoʊst səksˈɛsfəl fˈiːmeɪlˈoʊnd bˈɪznəsᵻz ɪnðə juːnˈaɪɾᵻd stˈeɪts æt ðə tˈɜːn ʌvðə twˈɛntiəθ sˈɛntʃɚɹi.
In 1902, Gibbs purchased a property at 902 T Street, NW in Washington, D.C., at which his daughter, Harriet Gibbs Marshall, ran the Washington Conservatory of Music, one of the most successful female-owned businesses in the United States at the turn of the 20th century.