Creating Anonymous Types from a Subset of Parent Type Properties

I have a list of user objects, and I want to be able to programmatically retrieve an anonymous type that contains a subset of the properties of this object. I have a list of Person objects such as: (VS 2010.NET 4.0). Took it for granted, but yes, Person data is stored in the database.

var personList = new List<Person>()
 {
      new Person(){ PersonId=11, Weight=100, Race="Green", Height=230},
      new Person(){ PersonId=22, Weight=110, Race="Blue", Height=130}
 };

and based on the user who selects exactly which properties they want to see, I would like to emulate

var query = from c in personList
            select new
             {
                 Weight = c.Weight,
                 Height = c.Height,
                 PersonId = c.PersonId
             };

where in this situation, the user from the user interface chose PersonId, Weight, and Height as the properties they wanted to use to create a new anonymous type.

I have the following code that takes the given print text onto the screen of what a (simulated) user can select:

PropertyDescriptorCollection props = TypeDescriptor.GetProperties(typeof(Person));
var propList = new List<string>()
{
     "PersonId","Weight","Height"
};

for (int i = 0; i < personList.Count; i++)
{
      for (int j = 0; j < props.Count; j++)
      {
          if (propList.Contains(props[j].Name))
          {
              //properties added to object here..but can't return anonymous type from method....
              Console.WriteLine(props[j].GetValue(personList[i]));
          }
       }
 }

11, 100, 230 22, 110, 130 .

, , , var query..., select new .