Mystery Fate of Clarence Randolph Yonge, CSN, Asst. Paymaster CSS Alabama?

Clarence Randolph Yonge of Savannah, Georgia, was born 1833, the brother of Dr. Easton Yonge, William Yonge, and P. H. Bragg Yonge, CSN, Asst. Engr. aboard the CSS Florida.  Their parents were Wm. Philip Yonge and Ann Easton. Clarence was a kinsman of Confederate Navy Adm,. Bulloch. While in England, Clarence worked for the Union against the Confederate government. Clarence helped the Union compile it's case against the Confederacy in the Alabama Claims Hearings. After the Civil War, Clarence may have worked in U.S. Civil Service out west, under a false name.  Later, he may have been in U.S. Employment in Canada?  What was Clarence' post-war fate, and where is Clarence buried?