Wai K Cheng age: 61 Known as: Waihing Cheng Waiking Cheng Waikwan Cheng W Cheng Related to:Xi Chen, 34 Has lived in:Revere, MA Malden, MA Boston, MA Quincy, MA Waifong F Cheng age: 74 Known as: Wai Fong Cheng Wai F Cheng Wai W Cheng Wai S Cheng Related to:Xian Wu, 65 Has lived in:Watertown, MA Chestnut Hill, MA Brookline, MA Somerville, MA