The Lambs arrived in India in 1949 and founded the Trust in 1961 after a decade of difficult and challenging ministry. They came with a vision to preach the gospel to the small Chinese community of about 25,000 in Calcutta, India and starting schools for people who did not have opportunities to be educated. In their three decades of faithful service they touched and changed the life of hundreds of people they came in contact with, many who became faithful believers.
Mary Lamb died in November 1994. David Lamb died in November 2002.