Is what i'm coding wright or wrong

[Falcon Eyes]

Hi Every Body
pls some one tell me if what i'm coding below is write or wrong , i wrote main class called "Family" inside the Family class i defined a structure called "Son" as follow

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace test2del
{
   public class Family
    {
        string motherName;
        string fatherName;
        public string famName;

        Son[] FamilyColl = new Son[5];

        public Family(string fn, string mn)
        {
            motherName = mn;
            fatherName = fn;
        }
     public struct Son 
        {
            string SonName;
            String kind;
            float age;

            public Son(string sn, string sk, float sa)
            {
                SonName = sn;
                kind = sk;
                age = sa;

            }
            
            public string GetSonName
            {
                get { return SonName; }
            }
        }
    

    }
}

in the main Program file, i defied object of type Family and no problem
also i want to define an object of type Sun and this is the problem how can i do it