One to Many Model Declaration

public class Model
{
  public int Id {get; set;}
  public string Name {get; set;}
  public Make Make {get; set;}

  public int MakeId {get; set;}
}

public class Make
{
  public int Id {get; set;}
  public string Name {get; set;}
  public ICollection<Model> Models {get; set;}

  public Make()
  {
     Models = new Collection<Model>();
  }
}