ɹˈoʊlt wʌzɐ sˈɪvəl ˌɛndʒɪnˈɪɹ hˌuː bɪkˌeɪm ɐ fɹˈiːlæns dʒˈɜːnəlˌɪst ænd ɹˈoʊt twˈɛnti sˈɪks bˈʊks, nˈoʊɾəbli ˌɛndʒɪnˈɪɹɪŋ tˈɛkstbʊks; ɹˈoʊzmɚɹi ɹˈoʊt mjˈuːzɪk ænd ɐsˈɪstᵻd ðə kəmpˈoʊzɚ pˈiːɾɚ mˈækswɛl dˈeɪviz wɛn hiː tˈɔːt æt sˈaɪɹənsɪstɚ ɡɹˈæmɚ skˈuːl.
Rolt was a civil engineer who became a freelance journalist and wrote 26 books, notably engineering textbooks; Rosemary wrote music and assisted the composer Peter Maxwell Davies when he taught at Cirencester Grammar School.