Internal Revenue Service
When humane reasons are involved, the IRS may locate and forward letters to individuals. A few examples of cases in which the IRS might assist include:
For more information and clarification as to what may constitute "humane" reasons, you may refer to the IRS Handbook 1.3, Chapter 11, or see: IRS Policy Statement P-1-187. If you would like the IRS to help you locate an individual, place a personal letter addressed to the individual in a blank envelope. Include first class U.S. postage, and do not seal the letter. Place the unsealed letter in another envelope and address it as follows:
Internal Revenue Service
Office of Disclosure Operations
1111 Constitution Avenue NW
Washington, DC 20224
Social Security Administration
The Social Security Administration will attempt to forward a letter to a missing person for reasons similar to those mentioned in the IRS section above. There is a $3.00 charge for forwarding letters to inform persons about money or property they may be owed. Humanitarian letters are forwarded free of charge.
Follow the above IRS guidelines for sending a letter, and address it to:
Social Security Administration
Office of Public Inquiries
6401 Security Blvd.
Baltimore, Maryland 21235
Department of State
The US Department of State, Overseas Citizens Services will help locate relatives or friends who are overseas when there is concern about their welfare or a need to notify them of emergencies at home.
The Privacy Act requires that U.S. citizens over the age of 18 provide a Privacy Act waiver before information about them is released to a third party.
Persons in the United States may inquire about the welfare or whereabouts of U.S. citizens abroad by calling the Overseas Citizens Services at 202/647-5225. You may also contact the American Citizens Service Section of the nearest U.S. embassy or consulate directly.
You will need to have the following information available when you call or contact the Department of State:
If you would like more information about locating persons of unknown whereabouts, you may call the General Services Administration's toll-free at 1-800-FED-INFO, Monday through Friday, from 8 a.m. to 8 p.m. eastern time.
To locate active duty or retired members of the U.S. Military, see: Locating US Military Personnel

