Find an object and its properties within a larger object with javascript/jquery

family = {
  \'person1\':[{\"id\":\"1111\",\"name\":\"adam\", \"sex\":\"male\", \"born\":\"USA\"}],
  \'person2\':[{\"id\":\"2222\",\"name\":\"sarah\", \"sex\":\"female\", \"born\":\"Canada\"}],
  \'person3\':[{\"id\":\"3333\",\"name\":\"adam\", \"sex\":\"male\", \"born\":\"USA\"}]
};

Given the family object above, how do I extract all the properties (id, name, sex, born) of one of the person objects that have a specific id (or name) value? eg id=1111

So ideally I can get a new object personInQuestion that I can manipulate, where:

personInQuestion = {\"id\":\"1111\",\"name\":\"adam\", \"sex\":\"male\", \"born\":\"USA\"}

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