Thanks for the advice. I cleaned electrical connections today. The windows quit because wires going into plugs under driver's seat had corroded completely off. Rewired & windows work! All the electrical contacts under the hood were corroded. Also, I figured the contacts in the wiper switch must be corroded too so I flipped the switch on & off about 50 times fast & the corrosion must have worn off because the wipers now work. I'll check the ignition switch tomorrow.
Thanks again for your help
Mike