Allied Breweries - A Long Life suggests that Daniel Hanley first set up a brewing business in the 1840s. As far as the documents here in B15/6 show, the earliest document to mention Daniel (29D/5, concerning the Black Horse at Standlake), dates from 1862.
Daniel's brewery passed to Charles and Edmund Augustine Hanley, who in 1890 turned the business into a company, trading as Hanley & Co., trading from the City Brewery in 20 Queen Street. In 1893, they took over the firm of Shillingford & Co. of Bicester (see B15/5 above), but in 1898, they were themselves taken over by Halls Oxford Brewery.
The documents on Hanley & Co. are notable in that much of their property was held on leasehold, and very few leases on these properties survive from before the 1880s, so that it is not possible to know when they first began to occupy a given pub.