useless trivia: What Word Means: A First Name - Oxidating - Unpracticed?

Questions

American cooking expert, author, & television personality?

American indians used beads as currency. What was it called?

American inventor, engineer, & steamboat builder?

American inventor, whose development of a practical electric light bulb, electric generating system, sound-recording device, & motion picture projector had profound effects on the shaping of modern society?

American mathematician & founder of cybernetics, the study of control & communication in machines, animals, & organizations?