British birth-control successor line (1921–1939): CBC 'Racial Progress' → SPBCC → NBCC/NBCA → Family Planning Association
organization
The groups that took over from the birth-control league included one called the Society for Constructive Birth Control and Racial Progress.
Who they are
Marie Stopes's society (1921) and the bodies that became Britain's Family Planning Association in 1939[1].
What they do
This is the institutional line from the League to modern family planning.
How it works
In 1938 the National Birth Control Association moved into 69 Eccleston Square — which the archive notes was the headquarters of the Eugenics Society.
Why it matters
Shared buildings and people are documented. They show closeness, not a single programme.
The engine's record — word for word
[
Report #196] **In plain terms:** the bodies that carried the League's work into the Family Planning Association, one of which had 'Racial Progress' in its name.
1921 — Marie Stopes founds the Society for Constructive Birth Control and Racial Progress and opens the Mothers' Clinic (March 1921). 1924 — Society for the Provision of Birth Control Clinics. July 1930 — National Birth Control Council (C. V. Drysdale instrumental). July 1931 — renamed National Birth Control Association. February 1938 — NBCA moves to 69 Eccleston Square, which the Wellcome FPA record marks '[HQ of Eugenics Society]'. May 1939 — Family Planning Association. Documented shared premises and personnel with the Eugenics Society; held as institutional adjacency, not a single program.
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