Looking in the 1935 & 1940 Singapore & Malayan Directories:
In 1935: H. LINGARD Borneo Co.Ltd, Chieng Mai, Thailand and
W. LINGARD Rengeng Tin NL, Phuket, Thailand
In 1940: M.R.L. LINGARD Padaj Valley Estate, Tenom Rubber Estates Ltd, Beaufort, British North Borneo
..perhaps the next generation?
best wishes
Jonathan Moffatt
Malayan Volunteers Group
http://www.malayanvolunteersgroup.org.uk/