USS Borie (DD 215), flagship of Destroyer Squadron 33 in the 1930s.
After exchanging 50 flush-deckers for base sites with Britain in 1940, the US Navy had 120 flush-deckers available for operations. As of 17 October 1941, while 48 had been converted as light minelayers (DM), high speed minesweepers (DMS), seaplane tenders (AVD) and fast transports (APD), 72 retained their “DD” designation. Together with the lone remaining 1,000-tonner, Allen, these were assigned as follows:

DESRON 27

Atlantic Fleet.
FLAGSHIP — 341 Decatur.
DESDIV 53 — 126 Badger (flag), 128 Babbitt, 158 Leary, 159 Schenck.
DESDIV 54 — 130 Jacob Jones, 147 Roper (flag), 157 Dickerson, 160 Herbert.

DESRON 29

Asiatic Fleet.
FLAGSHIP — 230 Paul Jones.
DESDIV 57 — 211 Alden, 216 John D. Edwards, 217 Whipple (flag), 219 Edsall.
DESDIV 58 — 213 Barker, 218 Parrott, 222 Bulmer, 224 Stewart (flag).
DESDIV 59 — 225 Pope, 226 Peary (flag), 227 Pillsbury, 228 John D. Ford.

DESRON 30

Atlantic Fleet.
FLAGSHIP — 199 Dallas.
DESDIV 60 — 152 Du Pont, 153 Bernadou, 154 Ellis (flag), 155 Cole.
DESDIV 61 — 118 Lea, 142 Tarbell, 144 Upshur, 145 Greer (flag).

DESRON 31

Atlantic Fleet.
FLAGSHIP — 220 MacLeish.
DESDIV 62 — 239 Overton, 240 Sturtevant, 245 Reuben James, 246 Bainbridge.
DESDIV 63 — 210 Broome, 221 Simpson, 223 McCormick (flag), 229 Truxtun.

DESRON 33
Assigned to the 15th Naval District.
FLAGSHIP — 215 Borie.
DESDIV 66 — 148 Breckinridge, 149 Barney, 150 Blakeley, 151 Biddle.
DESDIV 67 — 125 Tattnall, 156 J. Fred Talbott, 187 Dahlgren, 247 Goff, 248 Barry.

DIVISIONS ATTACHED TO NAVAL DISTRICTS
DESDIV 70 (11th Naval District, San Diego) — 109 Crane (flag), 113 Rathburne, 137 Kilty, 138 Kennison, 164 Crosby.
DESDIV 80 (14th Naval District, Pearl Harbor) — 66 Allen, 103 Schley, 106 Chew, 139 Ward.
DESDIV 82 (13th Naval District, Puget Sound) — 115 Waters, 116 Dent, 231 Hatfield, 232 Brooks, 233 Gilmer, 234 Fox, 235 Kane.
DESDIV 83 (12th Naval District, Mare Island) — 114 Talbot, 236 Humphreys, 242 King, 243 Sands, 250 Lawrence (flag).

OTHER
FLAGSHIP, SUBMARINE SQUADRON 4 (Pearl Harbor) — 336 Litchfield.
SEAPLANE TEST SHIP — 343 Noa (modified but not redesignated).

Note: Division listings show ships in hull-number order. Other sources sometimes use different orders, e.g., reflecting the seniority of their commanding officers at a specific time.