Peoples Temple, New Religious Movements
Standing
Concerns Membership Over Time
Currently States Peoples Temple publicly claimed as many as 20,000 total members at its peak in the mid-1970s after relocating its headquarters to San Francisco, though only between about 4,800 and 5,000 people are documented to have given the church their personal details for a membership card during the same period, according to the Jonestown Institute's own review of the group's surviving membership records.
Peoples Temple's own public claim of up to 20,000 members was never matched by the movement's internal paperwork: the Jonestown Institute at San Diego State University, custodian of the group's surviving records, counts between about 4,800 and 5,000 people who actually submitted personal details for a membership card, and separately estimates that no more than roughly 2,000 people were ever committed enough to travel to Guyana. The gap between the public figure and the documented one is recorded here rather than resolved, since neither has been superseded by the other.
Source Understanding Jonestown and Peoples Temple, Rebecca Moore