Hello and thank you for your message!
I am sorry but I have not come across a Michael Damms in the course of my research into the Sheffield Flood.
What I will do [in the hope it will be of interest to you] is send you a copy of the family tree I have drawn for Damms with the connection to the flood. I will send this to you using both of your direct email addresses.
If, one day, you manage to find a connection to your husband's family, do let me know and I will be able to send you details about the people who died in th flood.
Good luck with your searches.