William S. Alley from The Stock Exchange in Caricature, Vol. 2 1904
William Alley traded as an independent in 1901-02, for Wilcox & Company in 1900, and for John Wallace in 1898. His sad story can be found here.
Stewart Barr from The Stock Exchange in Caricature, Vol. 2, 1904
Stewart Barr held a seat at the NYSE through the 1898 tax period and his firm had no other seated members as partners or associates.