1. Tristan's research direction was known to only a handful of other academics. It might help if you can be more specific regarding the origin of the contamination.

2. If someone did come out and claim that their ideas were used without proper attribution in Tristan's work, then of course, that deserves consideration.

3. What you're suggesting seems purely hypothetical. At present, there is nobody claiming that Tristan's work is "contaminated"

4. Tristan was very willing in his initial statement to give credit to the people who developed the ideas.