Wenger found 3 evidences. One was the landforms, and how they fitted perfectly together. Plus the Mt. ranges matched up with those on other continents. He also found evidence from fossils. He found fossils of 2 identical prehistoric animals on different continents, that had to be together once. The last evidence was from the climate. He found fossils of tropical plants on cold lands which would have had to be warm sometime. Those are the 3 evidences.
Hess also used 3 evidences. One was from molten material he found on the bottom of the ocean, he described it as pillows or toothpaste. These shapes could only be made by magma erupting. The second evidence is magnetic stripes. On each side the patterns were equal. The last one is drilling samples. The further away the rock was from the mid-ocean ridge the older the rock was.