 Complete the following phrase:  In December 1911, Anderson then in the grade of lieutet assumed command of , the Commander in Chiefs dispatch boat and small relief flagship. From April 1912 to January 1913, he served as aide and flag lieutet on the staff of Rear Admiral Hugh Osterhaus, USN, Commander in Chief, Atlantic Fleet. He then served on board from December 1912 to June 1913. Following that assignment, Anderson served in from June 1913 to December 1914, seeing action in Santo Domingo and also at the 