Thanks Jeff for your great explanation, and thanks to all the rest for your replies and help.
So some one else might benefit from this, I have corrected the problem. I jacked up the car and looked at everything I could think of in the front end. the boots on the CV axles all looked good. There was very little play in the movement of the axles as I tried to move and twist them forward and back. The tie rod of the steering were all tight with no play and the ball joint didn't move at all as I pushed and pulled the wheel from top to bottom and side to side. The large metal framework, (I believe it's called a knuckle) was solid and any thing that moved or had a bushing or bolt in it under the front end also seemed solid. NO problems with the struts. The motor mounts all looked good and I couldn't get any play in them as I tried to move the engine with a bar. I was rather stumped yet the thumping continued. As the wheels turned, I could hear no noise at all from the bearings.
I took the car to Less Schwab to have the tires checked out. They were 100,000 mile Toyo tires and I had less than 49,000 miles on them. After looking and checking them for a few minuets, they came to the conclusion that the two back tires were very worn and the two front tires were separating. The separating tires must have been causing the thumping sounds, but didn't even seem out of round. They are sending the tires back to the factory to have them evaluated. In the mean time, I purchased a set of cooper tires and the noises have all cleared up. I didn't get the 100,000 out of the tires but I did get a discount for the miles not used.
Thanks again everyone for you replies
Rex