Hello Layreader
If Maxwell was killed in the explosion i feel sure the incident would have been reported in a Chester newspaper of the time.If you have the date of the occurrence,you could try emailing or writing to the main library in chester.One with a reference room,first rather than the Cheshire & Chester Archives.All or most old newspapers are on film,so if they have time they may do a lookup for you.If you don't have any luck i am hoping to go to Chester myself in the next two weeks for a day out.So might be able to help.
Celia