Genealogy
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Clan Associations
There are two clan associations for the Tom Clan: the Taishan Kwong Yee Association and the Chew Lun Association.
The Taishan Kwong Yee Association concentrates on Tom genealogy and it is located in a middle school in Taishan, China. It distributes a monthly magazine and writes about overseas Chinese, especially overseas Chinese visiting Taishan. The Taishan Kwong Yee Association also has a location at: 29 Duncombe Alley, San Francisco, California 94133-4901, USA + 1 415 982 1465
The Chew Lun Association ( 昭 倫 公 所 ) is a four clan association that includes the four surnames--Hom ( 譚 ), Tom ( 談 ), Huey ( 許 ), Der ( 謝 ). The characters for all the surnames used the radical yan 言on the left. These surnames were all alleged to be derived from a descendant of Chiang Tai Kung ( 姜 太 公) (1210 -1120 BC ), one of the most celebrated generals in Chinese history and worshipped even today in China as a god who protects homes and shops. His descendant, Wei, was the father of four sons. As they were living in the times of political strife, Wei was afraid to bequeath his clan name to his progeny. He therefore only gave them first names, which were Hom, Tom, Huey and Der. When these sons grew up the father cautioned them about revealing their real clan name, but always come to the aid of each other. Later, these sons took their first names as family names, but always remembered their father's injunction to help each other. The Chew Lun four-family alliance came about many centuries later to reunite the descendants of the sons of Wei, who started out as blood brothers.* The Tom, Hom, Huey and Der clans are found throughout the world and there are also Chew Lun Association branches in many cities and countries. This listing of Chew Lun Associations also include associations for any of the four clan surnames. More information on Tom clan history can be found under History.

* This information was made available by Washington Tom Lee, Bet Lai, and Him Mark Lai.