Crack the Code!

A young gentleman and a young lady have been passing notes to each other during class. This aristocrat-style cryptogram is one example. Please recover the plaintext. Hint: it probably starts with the word "Dear"

Good luck!

A :
B :
C :
D :
E :
F :
G :
H :
I :
J :
K :
L :
M :
N :
O :
P :
Q :
R :
S :
T :
U :
V :
W :
X :
Y :
Z :

Frequency Distribution of Ciphertext

 

Frequency Distribution of English

A joint project of Brendan Bard, Prof. Gregory Bard, and Prof. Seth Dutter, University of Wisconsin---Stout (January 30th, 2019)