Her Irish Christian name reflected her ancestry, but she died with a traditional Batak scarf (ulos) around her neck, signifying her adoption into the Hasibuan clan during her time working in North Sumatra, Indonesia.
Converted at the age of 15 through the ministry of Humphrey Newman at St John’s Church Welling, she went to university in Leeds, then taught RE in Yorkshire. After further study at London Bible College she was sent to Asia with OMF in March 1969 by Sidcup Baptist Church. She served in Bandung, West Java, as a lay Elder in the Gereja Kristen Indonesia, whose members were mainly Chinese. She preached, taught and counselled regularly in the congregations, but her greatest ministry was to students and other young people.
When Dorothy Marx took a rare furlough, it was Lish who was invited to give the Christian Religion lectures at the Institut Teknologi Bandung, one of the top universities in the country. Through this she developed lasting spiritual relationships with a generation of key graduates.