Here'a a thred on Upper Thomas Street Humbleworks but most of the pics are missing due to hacking https://birminghamhistory.co.uk/forum/showthread.php?t=17711&page=3&highlight=upper+thomas+street
Maybe this site could jog your memory if you enter the location of the incident..My Mum lived across the rd from Palace she was bombed out in same raid her best friend and all her family who lived next door were killed their name is on the memorial but my aging brain does not recall the name sadly my dear Mum has passed on.
Looks like this may have been your neighbours Donbogen https://www.swanshurst.org/barra/results.asp