Talk:United States Census 1820

Is 16-26 one group or two?
The article says under Unique Issues "Breaks down the male group, 16-26, into two groups." That's not at all clear. There are two groups: 16-18 and 16-26. So how was a male age 17 recorded? Only in the first, or twice as the brackets suggest.

In other words, when one finds a one marked in both columns, goes that mean there were two males age 16-26, or one?