Especially thank you Mary for informing me of the following.
"There is an Open House about the Cemetery being held on Saturday, March 1 from 9 a.m. to 11 a.m. at the Superior Town Hall.The flyer says that it is an "opportunity to learn more about the Superior Cemetery", and it is sponsored by the Superior Historical Commission. They ask persons to please bring historical photos to add to their collection, and that a scanner will be available to create a copy of historical photos for their files. [phone - 303-499-1657 ; they do not list an email for the commission. I certainly can't get there in time, so tonight I'm sending an email to the Town Hall - firstname.lastname@example.org - and asking them to pass on to the Commission]...The Town of Superior has an inventory of the burials there, and they have a list that may be able to help you find out about your relatives."
And finally "Thank you very much" people of the Superior Historical Commission - great job !