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Sai Wing Mock (麦世荣) "Mock Duck" (麥德) | |
|---|---|
 Early New York City Police Department mugshot of Chinese criminal Tong leader Mock Duck, before going to Sing Sing Penetentiary, 1912 | |
| Born | 1879 Guangdong, China |
| Died | July 23, 1941 (age 62) Chinatown, Manhattan, New York City, United States |
| Nationality | Chinese American |
| Occupation(s) | thief, river pirate, kidnapper, criminal gang leader |
| Known for | Being top New York City Chinese Tong gang leader from late 19th-mid 20th century |
Sai Wing Mock (aka Mock Duck) (1879 – July 23, 1941) was a Chinese-American criminal and leader of the Hip Sing Tong, which replaced the On Leong Tong as the dominant Chinese-American Tong in Manhattan Chinatown in the early 1900s.