O
| Name | Affiliation | Country | Languages |
|---|---|---|---|
| Osgood, Sewall M. | Baptist | Burma | EN |
| Overholt, William W. | Methodist | Sarawak | EN |
P
| Name | Affiliation | Country | Languages |
|---|---|---|---|
| Pécot, Mathurin-Pierre | Roman Catholic | Malaya and Singapore | EN |
| Phinney, Frank D. | Baptist | Burma | EN |
R
| Name | Affiliation | Country | Languages |
|---|---|---|---|
| Ramish, Lucille | Overseas Missionary Fellowship | Singapore and Malaysia | EN |
S
| Name | Affiliation | Country | Languages |
|---|---|---|---|
| Sawatsky, Benjamin A. | Evangelical Free Church | Singapore and Malaysia | EN |
| Shepherd, Hilda E. | Methodist | Sarawak | EN |
| Supramaniam, James Arumugam | Methodist | Malaya and Singapore | EN |
| Sutlive, Vinson H. | Methodist | Sarawak | EN |
T
| Name | Affiliation | Country | Languages |
|---|---|---|---|
| Tan Phek Geok | Methodist | Singapore and Malaysia | EN |
U
| Name | Affiliation | Country | Languages |
|---|---|---|---|
| Underwood, William | Methodist | Malaya and Singapore | EN |
W
| Name | Affiliation | Country | Languages |
|---|---|---|---|
| Webb, Doris H. | Methodist | China, India, Sarawak | EN |
| West, Benjamin F. | Methodist | Malaya and Singapore | EN |
| Wiant, Bliss Leighton | Methodist | Sarawak | EN, CN |
| Wiltshire, Keith V. | Methodist | Sarawak | EN |
| Wong Nai Siong 黃乃裳 (Huáng Nǎishang) | Methodist | Sarawak | EN, CN |