and tradesmen during the early and mid 20th centuries, and their businesses dominated the shophouses along Temple Street, Pagoda Street, and Mosque Street. Cantonese women from the Samsui district worked as labourers at construction sites and contributed greatly toward Singapore's development. These Samsui women left their families behind in China and came to Singapore to work at construction sites for a living during the early 20th century. Cantonese women from the Siyi district of Jiangmen wore black headgear similar to the Samsui women and mainly worked at Keppel Harbour and the shipyards at the old harbour along the Singapore River. Many Cantonese women also worked as majie in rich people's households. More Cantonese immigrated from Hong Kong in the late 1980s and early 1990s. Today, the Cantonese dialect is still preserved amongst ethnic Chinese of Cantonese ancestry, although most younger generations tend to speak more Standard Chinese due to language reforms, but is still widely used as the main lingua franca for connecting both the older and the younger generations when communicating to one another as well. As of 2010, Singaporeans recognise Chinatown for having a large number of Cantonese people. Hakka The Hakka-speaking subgroup constitutes 11.4% of the Chinese Singaporean population. About 70% of them originated from Dabu County. Singapore has more than 200,000 Hakkas and they are the fourth-largest dialect group after the Hokkiens, Teochews and Cantonese. The Hakkas were known for running pawnshops, traditional Chinese medicine shops and optical shops. Many Hakka women who came to Singapore during the early 20th century worked in construction sites and wore headgear similar to the Samsui women. However, instead of red, the Hakka women wore black headgear. Ying Fo Fui Kun, a Hakka clan association, is the oldest clan association in Singapore. Its clan house is located at Telok Ayer Street in the Outram Planning Area, within the Central Area, Singapore's central business district. In 2015 a Hakka tulou replica was built. The replica in Singapore was built by the Fong Yun Thai Association, an umbrella body for three Hakka clans – Char Yong (Dabu) Association, Eng Teng Association and Foong Shoon Fui Kuan. This is the only tulou replica outside of proper China till date. Singapore's founding father Lee Kuan Yew and his son, Prime Minister Lee Hsien Loong, were fourth- and fifth-generation Chinese Singaporeans of Hakka descent, respectively. Apart from Lee Kuan Yew, many first-generation leaders of Singapore