In the pre-war period, Shek Ku Lung Village had two rows of houses which were occupied by about 30 households surnamed either Ng or Che (editor’s note: Nga Tsin Wai also had villagers surnamed Che). The majority of the villagers surnamed Ng included many members of the clan’s second branch. Both Shek Ku Lung Village and Nga Tsin Wai’s Ng Clan Ancestral Hall had their own water wells. When there was a shortage of water in Nga Tsin Wai, villagers would go to Shek Ku Lung Village to fill their containers. During the Japanese Occupation of Hong Kong, Ng Sui Mo's family had to seek refuge elsewhere. Most genealogical records of the second branch were lost during. As a result, second branch clansmen have no effective way to trace back their ancient ancestors. The author who compiled the genealogy of Ng Clan initially believed that the ancestors of Ng Sui Mo’s family were not surnamed Ng. When Ng Sui Mo was young, he was powerless to mount a defense against such claims, but many clan brothers readily admitted that he shared a common ancestry with them.