Kammala jumla mai zuwa: Wasu kafofin sun yi iƙirarin cewa a shekara ta 1614, an zaɓi Sackville dan majalisa na Sussex kuma yana ɗaya daga cikin shugabannin jam'iyyar jama'a amma wannan yana jayayya a cikin wasu bayanan Majalisar Addled. A shekara ta 1616 ya ziyarci Lyons kuma ya sami sakin Sir Edward Herbert wanda aka kama a can. An sanya shi Knight na Bath a ranar 3 ga Nuwamba 1616 lokacin da aka nada Charles I Yariman Wales. Daga 1619 ya kasance babban memba na jam'iyyar Virginia Company wanda ya goyi bayan Sir Edwin Sandys. A ranar 22 ga Yuli 1620 ya tashi a matsayin kwamandan a cikin sojojin da aka aiko a karkashin Sir Horatio Vere don taimakawa Frederick V, sarkin Bohemia, wanda shi ne surukin James I. Ya halarci taron
Yaƙin White Mountain a ranar 8 ga Nuwamba 1620.