Composition, Destroyer Squadrons, Battle Force, September 30, 1939
According to Fleet Notice 35N-39

Destroyers, Battle Force
Flagship: CL-8 Detroit

Destroyer Flottila 1
Flagship: CL-7 Raleigh
Tenders: AD-3 Dobbin, AD-4 Whitney

DESRON 1
Flagship: 360 Phelps
DESRON 2
Flagship: 356 Porter
DESDIV1
349 Dewey (F)
350 Hull
351 MacDonough
352 Worden
DESDIV2
355 Aylwin (F)
348 Farragut
353 Dale
354 Monaghan
DESDIV3
366 Drayton (F)
364 Mahan
367 Lamson
368 Flusser
DESDIV4
376 Cushing (F)
377 Perkins
378 Smith
379 Preston

DESRON 3
Flagship: 361 Clark
DESRON 9
Flagship: 358 McDougal
DESDIV5
372 Cassin (F)
369 Reid
371 Conyngham
375 Downes
DESDIV6
370 Case
365 Cummings
373 Shaw
374 Tucker
DESDIV17
381 Somers (F)
383 Warrington
359 Winslow
DESDIV18
395 Davis (F)
394 Sampson
396 Jouett

Destroyer Flottila 2
Flagship: CL-8 Detroit
Tendesr: AD-11 Altair, AD-2 Melville

DESRON 4 Flagship: 357 Selfridge
DESRON 7 Flagship: 362 Moffett
DESDIV11
380 Gridley (F)
382 Craven
400 McCall
401 Maury
DESDIV12
384 Dunlap (F)
385 Fanning
397 Benham
398 Ellet
DESDIV24
340 Perry (F)
337 Zane
338 Wasmuth
339 Trever
DESDIV28
207 Southard (F)
206 Chandler
208 Hovey
209 Long
DESDIV19
113 Rathburne (F)
114 Talbot
115 Waters
116 Dent

DESRON 21 Flagship: 220 MacLeish
DESRON 32 Flagship: 118 Lea
DESDIV62
223 McCormick (F)
239 Overton
240 Sturtevant
246 Bainbridge
 DESDIV63
250 Lawrence
243 Sands
242 King
236 Humphreys
DESDIV64
127 Twiggs
75 Wickes
76 Philip
78 Evans
DESDIV65
132 Aaron Ward
131 Buchanan
133 Hale
134 Crowninshield

Destroyers, Atlantic Squadron
DESRON 10 Flagship: 341 Decatur
DESDIV21
249 Hopkins (F)
245 Reuben James
247 Goff
248 Barry
DESDIV22
93 Fairfax
158 Leary
159 Schenck
AG-28 Manley
DESDIV27
210 Broome
215 Borie
221 Simpson
229 Truxtun
DESDIV29
126 Badger
130 Jacob Jones
157 Dickerson
160 Herbert
DESDIV30
128 Babbitt
140 Claxton
141 Hamilton
147 Roper

DESRON 30 Flagship: 233 Gilmer (F)
DESRON 41 Flagship: 199 Dallas (F)
DESDIV60
154 Ellis (F)
152 DuPont
153 Bernadou
155 Cole
DESDIV61
145 Greer (F)
142 Tarbell
143 Yarnall
144 Upshur
DESDIV66
148 Breckinridge
149 Barney
150 Blakeley
151 Biddle
DESDIV62
231 Hatfield (F)
234 Fox
232 Brooks
235 Kane