Canon = The name "Daedalus class."
Canon = The U.S.S. Essex was this class.
Canon = A desktop model on Sisko's desk with the name "U.S.S. Horizon NCC-176."
Canon = Around the year 2153 or so, an Earth Cargo Vessel exists with the name "ECS Horizon." A former crewmember happens to own a book called "Chicago Gangs."
Canon = In the year 2168, a Federation Starfleet vessel named the U.S.S. Horizon made first contact with Sigma Iotia, leaving behind a book called "Chicago Mobs of the Twenties."
Official = The Daedalus class starship is the same design as the desktop model, and the Essex, (U.S.S.) Horizon, and Archon are members of these classes. (Star Trek Encyclopedia).
Until there's visual evidence to the contrary, there's no reason not to assume that the Encyclopedia is wrong. The mobs book is just a sight gag, not to be taken seriously (and it's highly unlikely that the Mayweather family cargo ship and the Federation Starfleet vessel Horizon are the same ship, for a multitude of reasons).