[X Fretensis]

DLG did not stand for guide missile frigate. DLG stood for Destroyer Leader Guided Missile. These ships were intended to be the Squad Dog’s flag ship with AA missile capability.

[Bob]

Despite the "DL" in their hull numbers, the DLG's were called frigates, not destroyer leaders:

The only “double-ended” DLG class—fitted with missile launchers fore-and-aft—was the Leahy class, the first and only frigate class designed without a main gun battery...

DestroyerHistory.org

1011 Harry E. Yarnell (DLG 17) Leahy Class Frigate

1012 Gridley (DLG 21) Leahy Class Frigate

1013 Reeves (DLG 24) Leahy Class Frigate

1014 Worden (DLG 18) Leahy Class Frigate

1015 England (DLG 22) Leahy Class Frigate

1016 Dale (DLG 19) Leahy Class Frigate

1017 Richmond K. Turner (DLG 20) Leahy Class Frigate

1018 Halsey (DLG 23) Leahy Class Frigate

Hazegray.org, Bath Iron Works Production