Many Witnesses "lived in sexual sin" during the Rutherford era. This was frowned apoun, but you were not disfellowshiped..except if you critisized Rutherford! Then the Watchtower under Franz of May 15 1944 and finally 1/3 1952 clarified disfellowshiping for sexual immorality. Watch. 15/1 1947 banned Polygamy...reaction? Watch - "Nigeria- Then came the new direction on Polygamy at the Circuit Assembly in 1947...division resulted, it was like a war. Many newly associated ones stoped associating.."
Mexico yearbook 95 p.214 "Congregations in the 1940's...a custom was very deeply rooted for young men to "steal" a young woman from her home and live with her without being married...couples generally did not get married...many Conregation Servants were not legally married..."