I totally forgot to put the link in!

But I just noticed: There appear to be 2 different Bnjamin Smiths that people are listing as having died on May 9, 1958.
Here's a link to one that is not your relative, but lists the 1958 death.
http://trees.ancestry.com/tree/12001124/person/-269103034?ss...=

Then, here's a tree with what appears to be your relative, with a comment about the death.
http://trees.ancestry.com/tree/26596372/person/1876413271/co...