Alf Ellison was the chairman of operations at what farm implement maker in the United Kingdom?
Alf Ellison: Alfred Owen Ellison (1 January 1903 – 12 June 1987), often referred to in print as A.O. Ellison and known colloquially as Alf or A.O., was an Australian solicitor, company director, racehorse owner and breeder. Alf Ellison:  Ellison served as chairman of the Australian operations of Mutual Acceptance Ltd (now Standard Chartered) and Lister Blackstone. Blackstone &amp; Co: Blackstone & Co. was a farm implement maker at Stamford, Lincolnshire, United Kingdom.
Blackstone & Co.