This is a long shot as this post was from many years ago. I'm not a chew however I've read that one of my ancestors was owned by one John H Chew.

The item below is on the Archives of Maryland web site. Trying toi see if i can find any additional links.

"On a Sunday evening in October 1814,2 General Saunders escaped with David Saunders and Harry Quary, both slaves of John H. Chew, and Elleck, a slave of William Ward.3 Saunders' sister had encouraged him to escape, but did not accompany him.4 The four men reached the British sloop-of-war Dauntless, part of a squadron lying near Sharp's Island in the Chesapeake Bay by the Choptank River's mouth.5 General and David Saunders had transferred to the HMS Orlando by March 6, 1815"

http://www.msa.md.gov/megafile/msa/speccol/sc5400/sc5496/050...