If you are referring to the family, they are "the Wilsons" (plural).
If you are referring to something belonging to the family, you would use an apostrophe that shows ownership, e.g. "the Wilsons' car".
Note that the apostrophe follows the "s" since you wish to show ownership by the entire family or more than one member of the family. If, however, you wish to show ownership by just one Wilson, an example might be "Sam Wilson's car" in which you have the singular "Wilson" followed by an apostrophe and then the "s".
"Wilson's regarded today as an educational and political reformer."By adding the apostrophe s ('s) to the proper noun 'Wilson', the noun becomes a contraction for 'Wilson is', the subject and auxiliary verb of the sentence (is regarded is the complete verb).
Referring to the fuel, it is common. Referring to the soft drink, it is proper.
Yes, "Family Nurse Practitioner" is typically capitalized as it is a proper term and title referring to a specific role in healthcare.
No, "grandfather" is a common noun because it refers to a general type of family relation rather than a specific individual. If you are referring to him by his name, then his name would be a proper noun.
yes
First, it's "to" not "too." Second, what are you trying to ask?
Duke is a proper noun when used as a title for a specific person. For example John Doe, Duke of Anytown, or when referring to that same person later on. It is not used as a proper noun when referring to a group. For example: "The dukes were present at the ball." Unless you are referring to specific people or Duke University, Duke is not a proper noun.
Yes. She is the subject. =)
Yes, "Russian" is a proper noun when referring to things or people from Russia.
Yes, "Indian" can be a proper noun when referring to a specific individual or group of people from India. It can also be a proper noun when referring to Native American tribes.
Yes, "Italian" is a proper noun when referring to the language, nationality, or people of Italy.
This is not a proper question. What is 'it' referring to?