Callaway ta zama mai horar da rawa a kan kankara ta Jamus ta Yamma a 1969, inda ta horar da Angelika da Erich Buck zuwa zinare a gasar zakarun Turai ta 1972. Bayan ta koma Burtaniya ta horar da ma'aurata 'yan Hungary Krisztina Regőczy da András Sallay, waɗanda suka kasance
zakarun duniya da masu lashe lambar azurfa a gasar Olympics a shekarar 1980.