Yesterday I shared what I thought was an interesting story and photos of the Master Brewers’ Convention, from 1915, which began on September 30. It was held in San Francisco, California. On the second day of the two-day convention, October 1, 1915, they also held a formal banquet for all of the attendees and guests. It was held at German House, in the same space where the convention took place. Notice that a lot of the men there are wearing the same distinctive hat. Was there an MBAA hat that members wore?