The Military Reference Branch, National Archives, Washington, D. C. 20408, holds copies of most deck logs. The Suitland Reference Branch, National Archives, Washington D. C. 20409 has custody of muster rolls.
The National Personal Records Center in St. Louis, Missouri has a repository of records for retired and separate military members.
You will need to fill-in Standard Form 180 to request military records information.
The address is:
National Personnel Records Center
Military Personnel Records
9700 Page Ave
St. Louis, Missouri 63132
Individuals have also had success locating former and retired military personnel by placing advertisements or reunion notices in Coast Guard periodicals. These magazines have a combined circulation of several hundred thousand. Please contact the individual editors for assistance.