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The Culper Code Book

Under the orders of General George Washington, Major Benjamin Tallmadge organized the Culper Spy Ring in 1778 to gather information on British troop movements, fortifications, and military plans in the New York area. Informants used fake names and a numerical code book consisting of seven hundred and sixty-three numbers representing words, names, and places to communicate their information. Developed by Tallamadge, the Culper Code Book was an essential tool in American based espionage during the American Revolution.

→ Download: Culper Spy Ring Code (PDF)

 A219gun436offer655value
1a220go437office656virtue
2an221gain438onset657visit
3all222guide439order658valiant
4at223gold440over659victory
5and224glory441obstruct660vigilant
6art225gunner442obtain661vigorous
7arms226gloomy443observe662violent
8about227govern444occur663volenteer
9above228grandieure445offense664valuable
10absent229guilty446ommit665voluntary
11absurd230guinea447oppose U
12adorn231gallant448obligate666up
13adopt232gazette449obstinate667upper
14adore233grateful450obviate668upon
15advise234glacis451occupy669unto
16adjust235general452operate670unarm
17adjourn236garrison453origin671unfit
18afford237gentleman454ornament672unheard
19affront238glorious455overcome673unsafe
20affair239gradual456overlook674uniform
21again240granadier457overtake675uncertain
22april H458overrun676uncommon
23agent241hay459overthrow677unfriendly
24alter242he460obedience678unfortunate
25ally243his461objection W
26any244him462october679wind
27appear245haste463obscure680war
28appoint246hand464occasion681was
29august247hang465opinion682we
30approve248hour?466oppression683will
31arrest249have467opportunity684with
32arraign250head468obligation685when
33amuse251high P686wharf
34assign252hill469pay687wound
35assume253hope470peace688wood
36attempt254hut471plan689want
37attone255horse472put690wait
38attack256house473port691write
39alarm257happy474proof692who
40action258hardy475please693wish
41accomplish259harvest476part694whose
42apprehend260horrid477paper695wages
43abatis261horseman478pardon696warlike
44accommodate262human479party697welfare
45alternative263havock480perfect698willing
46artillery264healthy481pilot699winter
47ammunition265heavy482prudent700water
 B266honest483publish701woman
48be267hunger484purchase702writer
49bay268honor485purpose703waggon
50by269harmony486people704weary
51best270hazardous487pleasure705warrant
52but271hesitate488produce Y
53buy272history489prison706yet
54bring273horrible490progress707you
55boat274hospital491promise708your
56barn275hurrican492proper709yesterday
57banish276hypocrite493prosper Z
58baker277DOCUMENT DAMAGE494prospect710zeal
59battle278DOCUMENT DAMAGE495punish PROPER NAMES
60better279DOCUMENT DAMAGE496pertake711Gen Washington
61beacon I497perform712Clinton
62behalf280I498permit713Tryon
63bitter281if499pervert714Erskind
64bottom282in500prepare715Vaughan
65bounty283is501prevail716Robinson
66bondage284it502preserve717Brown
67barron285ice503pretend718Gen Garth
68brigade286ink504promote719North, Lord
69business287into505propose720Germain
70battery288instance506protect721Bolton John
71battallion289island507provost722Culper Sam
72british290impress508pursue723Culper Junr.
 C291improve509passenger724Austin Roe
73camp292incamp510passion725C. Brewster
74came293incur511pension726Rivingston
75cost294infest512period PLACES
76corps295inforce513persecute727New York
77change296instance514poverty728Long Island
78carry297insnare515power or powerful729Setauket
79clergy298instruct516prosperous730Kingsbridge
80common299intrigue517punishment731Bergen
81consult300intrust518preferment732Staten Island
82contest301instant519production733Boston
83contract302invest520pursuant734Rhode Island
84content303invite521pensioner735Connecticut
85Congress304ignorant522Parliament736New Jersey
86captain305impudent523persecution737Pensylvania
87careful306industry524practicable738Maryland
88city307infamous525profitable739Virginia
89clamour308influence526particular740North Carolina
90column309infantry527petition741South Carolina
91copy310infantry (symbol)528profession742Georgia
92cover311injury529proclaim743Quebeck
93county312innocent530provision744Hallifax
94courage313instrument531protection745England
95credit314intimate Q746London
96custom315illegal532quick747Portsmouth
97compute316imagin533question748Plymouth
98conduct317important534quantity749Ireland
99comply318imprison535quallity750Corke
100confine319improper R751Scotland
101caution320incumber536rank752West Indies
102conquer321inhuman537rain753East Indies
103coward322inquiry538run754Gibralter
104confess323interview539rule755France
105convict324incorrect540read756Spain
106cannon325interceed541rise757Scotland
107charactor326interfere542random758Portugal
108circumstance327intermix543ransom759Denmark
109clothier328introduce544rather760Russia
110company329immediate545real761Germany
111confident330impatient546riot762Hanover
112committee331incouragemt547robber763Head Quarters
113continue332infection548ready ALPHABET
114contradict333irregular549ruinAe
115correspond334invalid550rulerBf
116controvery335indians551rapidCg
117commission J552readerDh
118commissioner336June553rebelEi
119constitution337July554rigorFj
 D338jury555riverGa
120date339jealous556receitHb
121day340justify557refitIc
122dead341january558regainJd
123do K559rejoiceKo
124die342key560relateLm
125damage343king561requestMn
126doctor344kill562relaxNp
127dirty345know563redoubtOq
128drummer L564relyPr
129daily346law565remitQk
130dispatch347land566reprieveRl
131distant348love567repulseSu
132danger349low568rewardTv
133dislodge350lot569retractUw
134dismiss351lord570resignVx
135dragoon352light571ratifyWy
136detain353last572recompenceXz
137divert354learn573regularYs
138discourse355lady574regulateZt
139disband356letter575rigorous NUMBERS
140dismount357levy576recital1e
141disarm358levies-new577recover2f
142detect359liar578remember3g
143defense360lucky579remittance4i
144deceive361language580represent5k
145delay362limit581rebellion6m
146difficult363liquid582reduction7n
147disapprove364longitude583remarkable8o
148disregard365latitude584reinforcemt9q
149disappoint366laudable585refugee0u
150disagree367legible S  
151disorder368liberty586sail  
152dishonest369lottery587see  
153discover370literature588sea  
154december M589scheme  
155demolish371man590set  
156deliver372map591send  
157desolate373may592ship  
158during374march593safe  
 E375mast594same  
159ear376make595sky  
160eye377met596secret  
161end378me597seldom  
162enquire379my598sentence  
163effect380much599servant  
164endure381move600signal  
165enforce382most601silent  
166engage383mine602suffer  
167enclose384many603sudden  
168equip385mercy604surprise  
169excuse386moment605summer  
170exert387murder606speaker  
171expand388measure607steady  
172expose389method608submit  
173extort390mischief609surpass  
174express391mistake610sanction  
175embark392molest611sensible  
176employ393majesty612singular  
177explore394meditate613soldier  
178enemy395memory614sovereign  
179example396messenger615security  
180embassador397misery616severity  
181engagement398moveable617?  
182experience399multitude618september  
183evacuate400miscarry619surrender  
 F401misfortune620serviceable  
184Farm402miserable621security  
185face403mercenary622severity  
186fate404majority623society  
187false405minority624superior  
188friend406memorial T  
189fen407missterious625the  
190find408manufacture626that  
191form409moderator627this  
192fort410ministerial628these  
193fleet N629they  
194famine411name630there  
195father412new631thing  
196foggy413no632though  
197folly414not633time  
198frugal415night634to  
199faithfull416never635troops  
200favour417needful636thankfull  
201faulty418number637therefore  
202foreign419neither638timber  
203forget420nothing639tory  
204fulfil421neglect640transport  
205factor422nation641trail  
206faoulty423navy642traitor  
207favorite424natural643transgress  
208fortune425negative644translate  
209forget426negligence645terrible  
210foreigner427november646tyranny  
211fortitude428necessary V  
212fortify429nobility647vain  
213formidable O648vaunt  
214foundation430oath649vouch  
215february431of650vacant  
 G432off651vary  
216get433on652venture  
217great434or653vital  
218good435out654vulgar  
 

Directions for the Alphabet

N.B. the use of the alphabet is when you wish to express some words not mentioned in the numerical Dictionary. For instance the word heart would be expressed thus bielv. look the letters of the real word in the first column of the Alphabet and then apposite to them, let those letters in the second column represent them; in this case always observe to draw a line under the word, as fwv stands for but.

Numbers are represented by their opposite Letters which must have a double line under them as fikm is 2 4 5 6. & nqu is 790.

Directions for the numerical Dictionary

In the numerical Dictionary it is sufficient to express a part of a sentence only in figures, to make the rest perfectly unintelligable, as all words cannot be mentioned those of a synonimous meaning must be sought for. & if not to be found, & the word not proper to be wrote, then the alphabet must be used - When numbers are used always observe to put a period after the number thus 284. Stands for it & 295. inforce.

It will often happen that the same word may need to be changed thro the different moods, tenses, nums. &c - thus if you would express the word Introduce the number would be 328. if you express the word introduced make a small flourish over the same- Horse is repres[ented] by 255. Horses by ., kill by 344. killed by . impress by 290. impressed by , in such cases the Foregoing & subsequent parts must determine the word.