Ka cika wannan jimlar: Kingsley ya ƙware a yin zane-zane kuma an san shi sosai da ƙwarewarsa a yin gyaran haƙori. Ya lashe lambar zinare biyu a jere a gasar cin kofin duniya a
Birnin New York (1853) da kuma Paris (1855). Ya wallafa rahoto game da lamarin, yaro tare da V-shaped alveolar arch, a cikin 1858 a cikin New York Dental Journal. A shekara ta 1859, Kingsley ya ƙera bakin roba na roba mai laushi na Indiya don mai haƙuri na farko da ke da bakin ciki. Daga bisani ya koma koyarwa kuma ya zama Founder na Kwalejin New York na Dentistry, yana aiki a matsayin shugaban farko daga 1865 zuwa 1869. Kingsley kuma an san shi da aikinsa da ya shafi farantin palatal na vulcanite wanda ya kunshi karkata ta gaba wanda ya baiwa mutum damar ciji gaba tare da ƙananan jaw. Hotz daga baya ya canza kayan aikinsa kuma an san shi da "Vorbissplatte".