陈镇乐爵士于1883年4月5日出生。他是第五代马来西亚华人，住在赫伦街(马来语:Jalan Heeren)，在马六甲，也是他的兄弟姐妹的第三个儿子。根据历史记载，他的祖先在1771年从中国迁移到马六甲。之后，年轻的谭恩美就读于马六甲高中。他获得了坦特克关奖学金，该奖学金是专门授予该校优秀学生的。后来，他于1908年到1908年在新加坡的莱佛士学院继续接受教育。随后，他于1902年至1908年在该机构任教，并重新回到马来亚，担任Bukit Kajang Rubber Estates Ltd .的助理经理，该公司属于他的表弟。他学得很快，很快就在1909年被任命为马六甲橡胶屋的拜访代理。在同一个年,谭开始三家公司——马六甲Pindah橡胶地产有限公司、美国马六甲橡胶园和艾耶尔Molek地产有限公司三年后的1912年,英国政府已提名他为马六甲委员会委员和马六甲的正义的和平也一个月后,他也被提名为专员镇议会的城镇和马六甲港口。1914年，他复兴了马六甲华人志愿者，直到1919年才成为一名普通成员。1915年，海峡中国英国协会(SCBA)在他的帮助下恢复，不久之后当选为SCBA主席。1923年，40岁的他被任命为海峡殖民地立法委员会的指定成员。谭达托先生以各种方式为社会和马来亚作出贡献。
Tun Dato Sir Chen Zhen Loke was born on April 5, 1883. He was the fifth-generation Peranakan Chinese Malaysian living on Heeren Street (Malay: Jalan Heeren) in Malacca and also the third son in his family of total seven brothers and sisters. According to history, his ancestors had migrated from China to Malacca in 1771. After then, the young Tan attended Malacca High School. He won the Tan Teck Guan Scholarship, which is specially awarded to top performers in the school. He later continued his education at Raffles Institution in Singapore from 1902-1908. He subsequently taught at the Institution from 1902 to 1908, and relocated back to Malaya to work as an assistant manager of the Bukit Kajang Rubber Estates Ltd., a company which belonged to his cousin. He was a quick learner and soon he was appointed visiting agent to Nyalas Rubber Estates in Malacca in 1909. In that very same year, Tan started three companies – Melaka Pindah Rubber Estates Ltd., United Malacca Rubber Estates and Ayer Molek Estates Ltd. Three years later in 1912, the British government has nominated him as Melaka Council Commissioner and a Justice of the Peace for Malacca and also after a month, he was also nominated as the Commissioner of the Town Council for the towns and Melaka Port as well. In 1914, he resuscitated the Malacca Chinese Volunteer and was an ordinary member until 1919. The following year in 1915, the Strait Chinese British Association (SCBA) was revived by him, electing as the President of SCBA soon after. In 1923, at the age of 40, he was appointed as an nominated member of the Legislative Council of the Straits Settlements. Tun Dato Sir Tan Cheng Lock’s contribution in various ways toward society and Malaya are appreciated.