Column Headings for 1840 Census
A. Head of family
B. Males 0-5
C. Males 6-10
D. Males 11-15
E. Males 16-20
F. Males 21-30
G. Males 31-40
H. Males 41-50
I. Males 51-60
J. Males 61-70
K. Males 71-80
L. Males 81-90
M. Males 91-100
N. Males 101+
O. Females 0-5
P. Females 6-10
Q. Females 11-15
R. Females 16-20
S. Females 21-30
T. Females 31-40
U. Females 41-50
V. Females 51-60
W. Females 61-70
X. Females 71-80
Y. Females 81-90
Z. Females 91-100
AA. Females 101+