Thank you for your email requesting data regarding the historical CPC in Tibet.
The ethnic Tibetans (prior to their conversion to 'Buddhism') were a very violent 'warrior' ethnicity and invaded large swathes of Western and Southwestern geographical China during the 10th century CE - and continued to re-settle these vast areas (such as Sichuan and Yunnan, etc_, although both 'names' and 'boundaries have changed over the centuries as Dynasties have come and gone. This is why millions of Tibetans (the Tibetan 'diaspora') today live outside of geographical Tibet - inside of geographical China. It is also why (and 'now') Tibet became (politically) part of China.
Why Did Democratic Reform Take Place in Tibet in 1959?
YOUNGER BROTHER OF THE DALAI LAMA: “WHEN THE 14TH DALAI LAMA IS GONE, WE ARE DONE!” INTERNAL DIVISIONS IN THE DALAI CLIQUE INTENSIFY
TIBET: YOUNG COMMUNIST LEAGUE REACHES 160,000 MEMBERS WITH 6.700 ORGANISATIONS! (2012)
Adapting to Socialist Society: Right Action - and the Development of Tibetan Buddhism
When Serfs Stood Up in Tibet - Anna Louis Strong
THE BRUTALITY AND BARBARISM OF FEUDAL TIBET (PRE-1949)
BOOK REVIEW: EXPOSING ‘YOUNGHUSBAND’ BY PATRICK FRENCH (2022)
Indeed, so unruly were the Tibetans in Southwest China under the 13th Dalai Lama (attacking and killing Westerners - as well as Chinese and Tibetan converts to Christianity whilst also destroying their Churches, etc) - that the new (post-1911) 'Nationalist' government gave-in to Western imperialist pressure and sent a substantial (punitive) field army (under the Command of one 'General Li') into the area only - to be diverted by the efforts of (Han) Chinese Buddhist Master Xu Yun (1840-1859) - who met with General Li and persuaded him to use peaceful means in quelling the Tibetan unrest. Note that this issue had nothing to do with geographical Tibet - which even then was considered 'remote', difficult to 'access' and culturally 'primitive' by comparison. However, although the British invaded Tibet a number of times during the late 1800s and early 1900s), the West in principle had no objection geographical Tibet being part of political China whilst under the political control of the Western-friendly Qing Dynasty (1644-1911) and the Western-friendly and Christian-friendly Nationalist Administration (1911-1949). The CIA-generated myth of 'Tibetan Independence' probably dates to the late 1950s - even though the 14th Dalai Lama was an ally of Nazi Germany both before and during WWII - continuing to grant asylum to Nazi War Criminals into the late 1950s, etc.
Just as the Qing and Nationalist governments maintained a sophisticated political administrative network throughout geographical Tibet and the Tibetan diaspora living within Southwest China, it logically follows that there existed (at different times - centred in different places) numerous 'mirroring' branches of the 'Communist Party of China' (CPC) which were kept secret for security reasons, but which were often found-out and/or betrayed by bourgeois or imperialist spies and ultimately 'liquidated' from time to time. All we have left is a few very old Red Flags, and perhaps one or two 'written' reports in the National Archives of China. A similar situation exists with the Communist Party branch that once thrived in Taiwan - although it is 'illegal' today with all vestiges of it destroyed by orders of the occupying Japanese (1895-1945) and subsequently the Americans (1945-present)! We have included a link above to the work of US journalist - Anna Louis Strong - who witnessed first-hand the time periods you are interested in - namely before, during and after the peaceful (and by all accounts 'enthusiastic') Liberation of Tibet (c. 1959)!
Best Wishes
BMA (UK)
Admin