Its founders were Seo Jae-pil, Yun Chi-ho, and Lee Sang-jae.

Manmingongdonghoi's vip members were Seo Jae-pil, Yu Gil-chun, Yun Chi-ho, Ahn Chang-ho, Lee Sang-jae, Syngman Rhee.

The congress grew more and more, and insisted on various rights of people and protection of concessions from the great Powers.

[3] On 12 October, the congress succeed in founding a reform-minded government composed of innovative officials such as Mihn Yong-hwan and Park Jeong-yang.

However pro-Russians and conservatives who hated Manmingongdonghoe, spread a rumor that the congress will revolt and expel Emperor Gojong.