ApiWrapperSnipper.cs

static void Main(string[] args)
{
    ApiClient test = new ApiClient("churchApiKey", "username", "password");

    var person = test.People.Individuals.Get(2, true);

    var Person = new Individual()
    {
        FirstName = person.FirstName,
        LastName = person.LastName,
        Addresses = person.Addresses,
        BirthDay = person.Birthday ?? DateTime.Today,
        Email = person.Email,
        Phone = person.Phones.First().Value,
        FullName = person.FullName
    };

    Person.GetIndividualInfo();
}

Individual.cs

class Individual
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public string FullName { get; set; }
    public string Email { get; set; }
    public List<Address> Addresses { get; set; }
    public DateTime BirthDay { get; set; }
    public string Phone { get; set; }

    public static int CalculateAge(DateTime birthDay)
    {
        int years = DateTime.Now.Year - birthDay.Year;

        if ((birthDay.Month > DateTime.Now.Month) || (birthDay.Month == DateTime.Now.Month && birthDay.Day > DateTime.Now.Day))
            years--;

        return years;
    }

    public void GetIndividualInfo()
    {
        var city = Addresses.First().City;
        var state = Addresses.First().State;
        var line1 = Addresses.First().Line1;
        var line2 = Addresses.First().Line2;
        var address = Addresses.First().StreetAddress;
        var zip = Addresses.First().Zip;
        Console.WriteLine( $"Name: {FullName} \n Email: {Email} \n Age: {CalculateAge(BirthDay)} \n Phone: {Phone}");
        Console.WriteLine($"Address: {line1} \n City: {city} \n State: {state} \n Zip: {zip}");
    }
}