Letter Books - Indexed Series - #1-1449
- CHUR #328 Correspondent : Doyle, M.E. 4p (11)
- CHUR #329 Correspondent : Milwaukee Journal, Milwaukee Sentinel, Cincinnati Enquirer- (11) Joseph Dorney 9p (11)
- CHUR #330 Correspondent : Drum, D.L. 4p (11)
- CHUR #331 Correspondent : Deming, J.K. 11p (11)
- CHUR #332 Correspondent : Barber, John E. 4p (11)
- CHUR #333 Correspondent : Creyke, Geoffrey 4p (11)
- CHUR #334 Correspondent : Downey, Joseph 5p (11)
- CHUR #335 Correspondent : Dolly, Thomas H. 9p (11)
- CHUR 1/12 Folder : Letter Book 12 - Letters #336-366
- CHUR #336 Correspondent : Dusell, Giles H. 7p (12)
- CHUR #337 Correspondent : Council of Foreign Relations- Douglas L. Dunbar 3p (12)
- CHUR #338 Correspondent : Philadelphia Record- John P. Dwyer 3p (12)
- CHUR #339 Correspondent : Dry Goods Economist- A.C. Pearson 6p (12)
- CHUR #340 Correspondent : Cleary White Construction Company- H.A. Dubia 24p (12)
- CHUR #341 Correspondent : Duncan, Elsa Russell 7p (12)
- CHUR #342 Correspondent : Dun's International Review- Edward N. Vose 3p (12)
- CHUR #343 Correspondent : General Motors Company- W.C. Durant, Edwin O. Wood 7p (12)
- CHUR #344 Correspondent : Continental Motors Corporation- G.W. Dunne 10p (12)
- CHUR #345 Correspondent : Duntley Hydro-Pneumatic Gas Generator Company- J.W. Duntley 17p
- CHUR #346 Correspondent : Durand, Ivins and Carton- Frank Durand 4p (12)
- CHUR #347 Correspondent : Swett, Fred G. 4p (12)
- CHUR #348 Correspondent : Eaton, Alfred B. 3p (12)
- CHUR #349 Correspondent : Vrooman, Carl 3p (12)
- CHUR #350 Correspondent : Edison Ford Burrows and Firestone Health Exposition- (12) Thomas Edison 10p (12)
- CHUR #351 Correspondent : Gotham National Bank of New York- H.H. Bizallion 4p (12)
- CHUR #352 Correspondent : National Electrical Supply Company- F.H. Eastman 2p (12)
- CHUR #353 Correspondent : Edward, C.G. 3p (12)
- CHUR #354 Correspondent : Brokaw-Eden Manufacturing Company- H.W. Eden 4p (12)
- CHUR #355 Correspondent : Victory Loan 2p (12)
- CHUR #356 Correspondent : Parker, John W. 4p (12)
- CHUR #357 Correspondent : Eccles and Smith Company- Chris Eccles 8p (12)
- CHUR #358 Correspondent : Harris-Schwarz Company, Inc.- Sam H. Harris 4p (12)
- CHUR #359 Correspondent : J.A. Fay and Egan Company- Thomas P. Egan 2p (12)
- CHUR #360 Correspondent : Ehle, Allen A. 4p (12)
- CHUR #361 Correspondent : Federal Electric Railway Commission- Guy E. Tripp 18p (12)
- CHUR #362 Correspondent : Loyal Trading Company- Edward Envrion 6p (12)
- CHUR #363 Correspondent : Thor Electric Shop- Charles A. Elgin 3p (12)
- CHUR #364 Correspondent : English-Speaking Union- John Evelyn Wrench 12p (12)
- CHUR #365 Correspondent : Eliot, Charles W. 5p (12)
- CHUR #366 Correspondent : Heave Together- A.J. England 3p (12)
- CHUR 1/13 Folder : Letter Book 13 - Letters #367-390
- CHUR #367 Correspondent : Chicago Great Western Railroad Company- C.J. Chisam, (13) Joseph W. Blabon, S.M. Felton, W.G. Lerch 103p (13)
- CHUR #368 Correspondent : Electrical World- F.M. Feiker 6p (13)
- CHUR #369 Correspondent : Emery, James A. 10p (13)
- CHUR #370 Correspondent : Engineers' Club- J. Struthers 6p (13)
- CHUR #371 Correspondent : American Railway Association: Northern Pacific Railway Company- Howard Elliott, J.G. Woodworth 8p (13)
- CHUR #372 Correspondent : Erie Railroad Company- D.W. Cooke 7p (13)
- CHUR #373 Correspondent : Evans, S. Marshall 3p (13)
- CHUR #374 Correspondent : Hanley, John H. 2p (13)
- CHUR #375 Correspondent : Ewing, Robert 2p (13)
- CHUR #376 Correspondent : Ewart Publishing Company- B.E. Winters 6p (13)
- CHUR #377 Correspondent : Cullen, William J. 4p (13)
- CHUR #378 Correspondent : Higgins, Francis G. 4p (13)
- CHUR #379 Correspondent : American Public Health Association- W.A. Evans 9p (13)
- CHUR #380 Correspondent : Dixon, Donald S. 5p (13)
- CHUR #381 Correspondent : Evans, Evan 18p (13)
- CHUR #382 Correspondent : Extension Magazine- S.A. Baldus 3p (13)
- CHUR #383 Correspondent : Extension Press- F.W. Harvey 4p (13)
- CHUR #384 Correspondent : American Ship Building Company- Merton E. Farr 8p (13)
- CHUR #385 Correspondent : French Lick Springs Hotel Company- Thomas Taggart 3p (13)
- CHUR #386 Correspondent : Farr, George W. 4p (13)
- CHUR #387 Correspondent : Hershey ArmsHotel 3p (13)
- CHUR #388 Correspondent : Fairmount Laundry 2p (13)
- CHUR #389 Correspondent : Falkenau, Victor 2p (13)
- CHUR #390 Correspondent : Alexander Hamilton Institute- Roland P. Falkner 5p (13)
- CHUR 2/01 Folder : Letter Book 14 - Letters #391-400
- CHUR #391 Correspondent : Farrell, Thomas F. 2p (14)
- CHUR #392 Correspondent : National Foreign Trade Council: United States Steel Corporation- J.A. Farrell, O.K. Davis 130p (14)
- CHUR #393 Correspondent : Farrell, Robert E. 5p (14)
- CHUR #394 Correspondent : Fanning-Mathis Company- Frank Fanning 5p (14)
- CHUR #395 Correspondent : A.B. Farquhar Company Ltd.- A.B. Farquhar 55p (14)
- CHUR #396 Correspondent : Francke, Emil 6p (14)
- CHUR #397 Correspondent : Farrell,J.D. 23p (14)
- CHUR #398 Correspondent : Fiske, George F. 4p (14)
- CHUR #399 Correspondent : Firestone Tire and Rubber- L.L. McClintock, (14) Harvey S. Firestone 15p (14)
- CHUR #400 Correspondent : Fitzgerald, John F. 2p (14)
- CHUR 2/02 Folder : Letter Book 15 - Letters #401-450
- CHUR #401 Correspondent : Feiereisel, F.A. 4p (15)
- CHUR #402 Correspondent : Industrial Extension Institute- Charles E. Funk 6p (15)
- CHUR #403 Correspondent : Iron Age- A.I. Dindley and H.H. Roberts 5p (15)
- CHUR #404 Correspondent : Fitzgerald, Thomas A. 3p (15)
- CHUR #405 Correspondent : Heywoth,James O. 12p (15)
- CHUR #406 Correspondent : Fisher, Alva J. 3p (15)
- CHUR #407 Correspondent : George B. Peck Dry Goods Company- James E. Campbell 6p (15)
- CHUR #408 Correspondent : Fitzgerald, John J. 6p (15)
- CHUR #409 Correspondent : Flately, Thomas J. 9p (15)
- CHUR #410 Correspondent : Fleming, S.B. 2p (15)
- CHUR #411 Correspondent : Braly, Harold H. 3p (15)
- CHUR #412 Correspondent : One Flag Committee 2p (15)
- CHUR #413 Correspondent : Flagg, W.J. 4p (15)
- CHUR #414 Correspondent : Department of Justice- Joseph B. Fleming, T.W. Gregory, (15) G. Carroll Todd 9p (15)
- CHUR #415 Correspondent : The Inn- Milton S. Florsheim 3p (15)
- CHUR #416 Correspondent : Florsheim, Simon 4p (15)
- CHUR #417 Correspondent : Flournoy, James Campbell 2p (15)
- CHUR #418 Correspondent : Flynn, Thomas P. 2p (15)
- CHUR #419 Correspondent : Flynn, Raymond D. 2p (15)
- CHUR #420 Correspondent : University of Chicago- John C. Weigle 2p (15)
- CHUR #421 Correspondent : Fletcher, Duncan U. 9p (15)
- CHUR #422 Correspondent : Fremont, J.C. 2p (15)
- CHUR #423 Correspondent : Navy Department- Josephus Daniels and Edward E. Britton 11p (15)