Over the years, the Castle has been home to the Smithsonian Institution Archives and the Woodrow Wilson International Center for Scholars. Today, the Castle houses the Institution's administrative offices and the Smithsonian Information Center.
Withdrawals made after age 59 and 1/2 are normal retirement withdrawals and are not taxed. You paid tax on that income when you first contributed to the Roth IRA. If the withdrawal is made before age 59 and 1/2 and is only up to the amount that has been contributed to the Roth IRA then no income tax is charged. Withdrawals of contributions are tax-free.
This percentage will then be the portion of each check that is not taxable. Most retirement and pension administrators will report this taxable dollar amount to you on your yearly tax forms. A ROTH IRA withdrawal may even be tax free. If the ROTH IRA was established five or more years earlier and the withdrawal is made after age 59-1/2, then none of the retirement check should be taxable.