Do not change the spelling of a person's name to make it plural. How do you differentiate between the plural form of the name "Murphy" and the plural form of the name "Murphie?" They are not both "Murphies." I would definitely go with "Murphys" for the plural of "Murphy."
Plural of name ending in Y
Do not change the spelling of a person's name to make it plural. How do you differentiate between the plural form of the name "Murphy" and the plural form of the name "Murphie?" They are not both "Murphies." I would definitely go with "Murphys" for the plural of "Murphy."