They are operating underway in company together, but I am not sure they are in formation in the formal sense. None of the three ships is flying Gulf as the guide. They may be in a column open order.
Nonetheless - it is a great Surface Warfare "Stiffy" photo
Now this a formation - all Four IOWAS in Formation in 1954 :
https://www.milsurps.com/images/impo...e_7_1954-1.jpg
Did a lot of DivTacs as OOD during my 8 years of Sea Duty. Most of the time though you are slicing holes in the water out in your screen sector with the other DDs and FFs in outer ASW screen of the CVBG - it was better than being an FFG/DDG doing inner screen AAW or worse lifeguard duty trailing the CV. Best of all was being on Spruance with Harpoons and later TASMs doing passive ASUW 50-100 nm from the CVBG