1840 Census Key 
Male column #1 and Female column #1
first number =  under 5       
second number =  over 5 and under 10    
third number =  over 10 and under 15
fourth number =  over 15 and under 20
fifth number = over 20 and under 30
sixth number = over 30 and under 40
seventh number = over 40 and under 50
eighth number = over 50 and under 60
Male column #2 and Female column #2
first number = over 60 and under 70
second number = over 70 and under 80
third number = over 80 and under 90
fourth number = over 90 and under 100
fifth number = over 100
 

Back to 1840 Crawford County, Indiana Census

 

 

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