There is a Joseph DARCY Sr. on DAR.org from Georgia - don't know if this is related.
DARCY, JOSEPH SR DAR Ancestor #: A029780
Service: GEORGIA Rank: PATRIOTIC SERVICE
Birth: CIRCA 1729
Death: A 4-24-1794 BURKE CO GEORGIA
Service Description:
1) SUFFERED LOSSES FROM TORIES
Residence1) City: ST.GEORGE PARISH - County: BURKE CO. - State: GEORGIA
Spouses: 1) CATHERINE X 2) ELIZABETH/ANN CORBETT