John Canfield Spencer (8 Jenụwarị 1788 - 17 Mee 1855) bụ onye ọka iwu, onye ndọrọ ndọrọ ọchịchị, onye ọka ikpe na odeakwụkwọ nke United States Cabinet na nchịkwa nke Onye isi ala John Tyler. Ajụjụ: Onye isi ala John Canfield Spencer na-arụ ọrụ?
John Tyler