Kammala jumla mai zuwa: An haifi Williamson kuma ya yi karatu a St Andrews. An fara kiransa zuwa West Kirk a shekara ta 1661 amma goyon bayansa ga Covenanters ya haifar da korarsa a shekara ta 1665 da kuma zarginsa a matsayin 'yan tawaye a shekara ta 1674. A lokacinsa a matsayin mai bin doka, ya tsere daga kamawa sau da yawa, musamman ta hanyar ɓoyewa a gado tare da Jean Kerr na Cherrytrees, wanda ya zama na uku na matansa bakwai. An yi bikin wannan taron a cikin waƙar gargajiya "Dainty Davie". Williamson kuma ya yi aiki a matsayin kwamandan a cikin
Yaƙin Bothwell Bridge. Williamson ya koma West Kirk a juyin juya hali kuma ya kasance har zuwa mutuwarsa a 1706.