Complex sentence: Ferguson was a member of the National Beauty Culturists League (NBCL), organized in 1919 in Philadelphia and Theta Nu Sigma, which Cordelia Green Johnson, wealthy Chicago real estate owner and president of the of NBCL started in 1946.
Split into simpler sentences: Ferguson was a member of the National Beauty Culturists League (NBCL), organized in 1919 in Philadelphia. Ferguson also belonged to Theta Nu Sigma, which Cordelia Green Johnson, a wealthy Chicago real estate owner and president of the of NBCL, started in 1946.