the firm reorganized as Farwell, Field & Co. John V. Farwell appreciated Field's keen business acumen; however, when it came to personality, the two were very different. Field's stuffy efficiency rode on Farwell's more relaxed and cheery demeanor. At a time when business collaboration entailed extensive personal interaction, this partnership would not last long.

In January 1865, Field and a partner, Levi Leiter, accepted an offer to become senior partners at