Letter Carriers Branch 664 is merging with Branch 3825. “This will really boost the strength of our branch and allow us to expedite a backload of grievances so that the members get resolution, and in many cases, funds as a result of our wins,” said Branch 3825 president Ken Lerch on Wednesday after the merger was approved by NALC president Fred Rolando. Branch 664 is based in Frederick, MD; 3825 is based out of Rockville and also covers Gaithersburg, Germantown and Damascus.