Yes, pony's is the correct singular possessive form.
example: The pony's stall was very clean.
The possessive of scientist is scientist's (apostrophe S).
The single possessive of people is people's. The plural possessive of people is peoples'.
The correct spelling is "gentlemen's".
The correct possessive form of the plural noun women is women's.Example: The women's project is preparing the playground for summer.
The possessive form for the noun dynasty is dynasty's.
There would be an apostrophe and s, so it could be "The college's campus."
kids'
monies'
heroes
The singular possessive form is story's.
The singular possessive form of the noun municipality is municipality's.example: Street cleaning is the individual municipality's responsibility.
falcon's