In the 1825 Census for Virgil , Cortland Co. , NY is James Cummingham . He read 73, that is AB column. In the CD columns are 1 1 In the JKL columns are 1 1 1 In the N column is 1 There are two Herrings in Virgil in 1825. They are John and Samuel John Herring reads 22 (A and B) and 1 (D). Nothing else for him Samuel Herring reads 41 (A and B) 1(C) 1 (D) 1(J) Hopefully other can help on these Letters. I think "A" is for total males in the house regardless of age. "B" is total females in the house regardless of age. "C" Total males that qualify for military service. "D" Total males than can vote. "E" Total of males that are aliens. "F" Persons who are paupers. "G" Persons of colour. "H" Persons of colour who pay taxes. "I" Persons of colour who can vote. "J" All married females of under age 45. "K" All unmarried females ages 16-45. "L" all females under 16 that are unmarried. I do not seem to have any information for the rest of the letters. That is all I have on Cumminghams and Herrings. Anna