Answer: Mrs. is a honorific and Norris is a proper noun.
Explanation: Part of Speech or Word Classes are groups of words, each indicating a function and a meaning, depending on the use, within the sentence. There are 8 classes: noun, pronoun, verb, adjective, adverbs preposition, conjunction and interjections.
In this excerpt, the words in capital letters are nouns: the word Norris is a proper noun, which names a specific person.
The word Mrs. is also a noun but it is a honorific, which refers to a title in terms of respect.
