* The name is misspelled: Perhaps you are thinking of a different poet with a similar name.
* The poet is relatively unknown: It's possible Isobel Dixon is a lesser-known poet, perhaps a local or regional figure.
* The name is fictional: It could be a character in a book or work of art.
To help me find more information, could you provide any of the following:
* More context: Where did you encounter the name Isobel Dixon? (e.g., book, website, etc.)
* Any other details: Do you remember any poems by Isobel Dixon, or anything else about her?
With more information, I might be able to help you find the poet you're looking for.