When did the Lee Kuan Yew family move to Singapore?

The specific "Southern Crossing" of Lee Kuan Yew's family cannot be verified. However, according to the Memoirs of Lee Kuan Yew, the Li family first came to Nanyang from grandfather's uncle's Li Muwen.

"Li Muwen was born in Tangxi Village, dapu county City, Guangdong Province on 1846. When I grow up, I will come to Singapore by boat. At that time, his route to the south was probably to sail downstream along the Han River by boat120km to Shantou, the nearest port in Guangdong Province, and then go out to sea for Nanyang ... 1882. When his great-grandfather earned enough money, he decided to go back to the village where his ancestors lived in China, build a big house for himself and appear as a country squire. However, my great-grandmother didn't want to leave her children in Singapore and go to a strange place alone. So my great-grandfather had to go back to China by himself. "

In addition, Lee Kuan Yew's grandfather Li Yunlong was born in Singapore on 1965. Lee Kuan Yew's father, Li Jinkun, was born in 1903. Lee Kuan Yew himself was born in Singapore on September 1923.