Get-a-Life Boy saysNot everyone agrees that the character The Time Master (or, as he introduced himself, Ty M. Master) is an earlier version of the Time Trapper. I can argue either side.
Here's a picture of Ty M. Master from the story, so you can make up your own mind.
Later info:
In Super Friends #17 (1979/Feb) it's made explicit that the Time Master and the Time Trapper are the same person.
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