X0201 5 2003-12-31 0 0 0 0000913072 MERRILL MERCHANTS BANCSHARES INC MERB 0001248087 OLDENBURG FREDERICK A JR MD PENOBSCOT RESPIRATORY 2487 OHIO STREET BANGOR ME 04401 1 0 0 0 Common Stock 14257 D Common Stock 17778 I By Spouse Common Stock 21192 I Trustee Holdings updated for stock dividend and dividend reinvestment shares for 2003 By self as Trustee for Penobscot Respiratory PA Pension Plan FBO Frederick Oldenburg Frederick A. Oldenburg, Jr. 2004-02-13