The Las Vegas Strip History website http://www.lvstriphistory.com/ lists the Holiday Queen as being at the site of the Boardwalk Holiday Inn. At the website's home page for 1993 it lists the following:

1993 Boardwalk Holiday Inn
_____1969 - Holiday Queen
_____Feb 13, 2002 Boardwalk Holiday Inn

By clicking on this link, the only reference is a scan of the $5 check at the bottom of the page.

Scott