Kammala jumla mai zuwa: Akwai ɗan rikodin ayyukan Williamson har zuwa 6 ga Yuli 1674, lokacin da aka la'anta shi a matsayin ɗan tawaye saboda gudanar da tarurruka. A cikin shekaru masu zuwa, Williamson ya tsira da tserewa da yawa daga doka, gami da abin da ya faru a cikin waƙar "Dainty Davie". A shekara ta 1679, Williamson ya umurci wani ɓangare na sojojin Covenanter a
Yaƙin Bothwell Bridge. Bayan mutuwar Williamson, ɗansa, John, ya ba da labarin abubuwan da mahaifinsa ya yi wa Robert Wodrow. A cikin taƙaitawar George Lorimer, Wodrow ya nuna Williamson a matsayin "mai yawo mai farauta, mai farin ciki da mafaka na wani dam din da ke bayan da zai kwanta ya huta a tsakiyar dusar ƙanƙara".