I forgot to mention this, but we were planning to arrive into Burton around 12:15 and I was hoping to go to the Weighbridge Inn. Their webpage said they don't open until 1pm, but I wondered if they might be a bit earlier for a matchday. Anyway I sent them a message to check, and they confirmed 1pm, but also suggested the Cooper Tavern, Roebuck or the Last Heretic as suitable alternatives. I thought that was a nice touch and therefore merited a visit later on when they did open.
In the end, our train connection at Tamworth was running several minutes late so instead of a 50 minute wait at Tamworth, we were in Burton for 11:20. Visited the Last Heretic and the Coopers Tavern, then went on to the Weighbridge Inn.
I remember from a previous visit that Ipswich fans had recently called in and thought the landlady dressed accordingly for whichever away team were playing there.