On Jan. 18, Adam Greenberg, son of Dr. Jeffrey and Stefanie Greenberg of Rockville, will become a bar mitzvah at Congregation B’nai Tzedek in Potomac. Adam is the brother of Jeremy and Jake and grandson of Dr. Larrie and Joyce Greenberg and Philip and Florence Miller of Potomac, and the late Judy Miller. Joining in the simcha are his uncles and aunts, great uncles and aunts and cousins. For his mitzvah project, Adam researched child victims of the Holocaust. Adam, a seventh-grader at Frost Middle School, enjoys soccer and lacrosse.