ˌʌndɚɡˈoʊɪŋ ɹˈæpɪd ɛkspˈænʃən, pɚtˈɪkjʊlɚli ɪnðə nˈaɪntiːnhˈʌndɹɪd fˈɪfti z, ðə fjˈuːtʃɚɹ ʌv sənt tʃˈɑːɹlz wʌz sˈiːmɪŋli əʃˈʊɹd ʌntˈɪl, wɪð dᵻklˈaɪnɪŋ ˈɪntɹɛst ɪn voʊkˈeɪʃənz ɪnðə kˈæθlɪk tʃˈɜːtʃ, ðə kˈɑːlɪdʒ ˈɔːlmoʊst klˈoʊzd ɪts dˈoːɹz ɪn nˈaɪntiːnhˈʌndɹɪd sˈɛvənti ˈeɪt.
Undergoing rapid expansion, particularly in the 1950s, the future of St Charles was seemingly assured until, with declining interest in vocations in the Catholic Church, the college almost closed its doors in 1978.