What has the author Clarence Kolwyck written?

There is no publicly known author named "Clarence Kolwyck." It's possible that:

* The name is misspelled. Double check the spelling and try searching again.

* The author uses a different name. Perhaps they have a pen name or publish under a different alias.

* The author is not widely published. They might be a self-published author or someone whose work is not widely known.

Could you provide any further context or information about Clarence Kolwyck, such as:

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