NATIONAL CONVENTION OF ON LEONG TONG OPENS HERE MONDAY
April 1, 1948 St. Louis Globe Democrat
"St. Louis' Chinatown was sprucing up yesterday for the annual national convention of the On Leong Tong, powerful Chinese merchants and laborers association, which will be gin here Monday and continue through April 23.

...Here ahead of the rest of the 125 delegates from 20 cities who will attend the meeting, were the two national presidents of the association, Chin King of New York and Y.W. Sun of Boston. They will preside at the closed policymaking meetings of the 60-year-old society."