Hi Mack,
The museum webpage identifies an address in Kettering and states Alfred died there on 28/05/1941, consistent with the death record I thought may be him. Hence it seems he didn't die in the Blitz, but may have died from his injuries.
By strange coincidence I was lurking around Islington & St Pancras Cemetery this morning, where the casualties from the Dame Alice Owen's Scholl victims are probably buried. Islington has a memorial for the civilian war deaths without any names. The St Pancras Memorial is much more grand and lists the names, including 4 undidentied men and 2 women.
Just one Manchester Regiment casualty in the 2 cemeteries. 16th Bttn's 61509 Charles Bennett died of nephrites at the London City Hosp, 21/01/1919, aged 31. He's inscribed on the Islington Screen Wall and buried out in the woods.
Tim