 Nyorai kupfuurira kweiyi ndima - Willis akaenda kuChrists College, Cambridge muna 1631, uye akagamuchirwa kuGrays Inn mugore rimwe chetero. Somwanakomana muduku, akanga asingagoni kugara nhaka yakawanda, saka akava murwi webasa, achinyoresa muchiuto cheDutch uye achibatira paKukombwa kweBredamuna 1637, achidzokera kunoshumira pasi paMambo Charles I muHondo dzeMabhishopi kubva muna 1639 kusvika muna 1640. Hondo yevagari vemo isati yatanga, Willis aiva nhengo yeKings Guard yaiva muWhitehall pasi paSir Thomas Lunsford. 