I started looking at census many, many years ago. And I did it by scrolling through rolls of census microfilm. Mostly, I either copied the film page or transcribed it. And it is by actually scrolling through these pages on microfilm where you see a lot of the mistakes census transcribers make.
For instance, I was on Ancestry.com the other day looking for an 1860 census record for Isaac Shelby Kirtley, his wife Susan Anna and those children who were born and survived to be counted. I had the reference for the page and the location and still couldn't find it. Then I remembered a lot of people who index can't really read everything and whomever actually transcribed the information to the census sheet made an error.
I did find him eventually, Shelby Kietley, his wife Anna and those kids. After carefully downloading and saving the image to be linked to his census event, I took the time to correct the transcription. It may help someone else, or me when I go to search for him again for some reason.
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