Observed white object for about 20 minutes in Nov. 1959 which approached and then flew away.

saw small white object a distance on my right when returning to campus. object came closer and I pulled onto small gravel rd. a short ways at which time glowing object was over farm house several hundred ft. away. object moved back and forth slowly as dome lite in care came on and off. no sound,. severl min. later object pulled away and I returned to main road. continued in previous direction and from distance saw object  approach pullman type passenger train with visible lites from passenger cars. In a split second object overtook train and arched toward sky and dissappeard traveling at enormous speed. About 20-30 minutes for entire incident. Object was elipitical in shape with no apparent windowns. Object approached as it saw my car movements. Object was about 40 ft. in diameter.
Witness indicates that date of sighting is approximate.  PD