Indexes and transcriptions don't tell the complete story of what's contained in a document.
The actual document scan often includes interesting details that put a different light on an ancestor's life--hidden in plain sight, available only by looking at the image!
Draft registration reveals unusual occupation
In researching Charles Train Caldwell (1877-1929), my husband's 2c2r, I took a look at the scan of his WWI draft registration card. I can't remember ever seeing one typed before, which caught my eye.
What also caught my eye was the occupation: "prisoner."
Plus this man's signature, which looks as though he can barely write. All of these small clues helped me get a better sense of his life--and motivated me to dig deeper for more information.
Charles had married in 1901 and was the father of two sons. By 1910, he and his wife had divorced. When and why he wound up in prison by the time he was registered for military service in 1918, I don't yet know.
Civil war registration reveals physical condition
Charles's father was Sanford
Caldwell (1843-1922). His US Civil War militia registration is on the last line of the above excerpt from an Indiana ledger book.
He's 19 years old, a farmer by occupation, and in the remarks column is a notation about his health: "diseased lungs, ex."
In other words, Sanford was exempt from service because of some sort of problem with his lungs.
This detail was hidden in plain sight, visible only if I looked at the document rather than simply accepting the basic facts from the transcription.
Sanford's lung problem didn't prevent him from farming, marrying, having children, and living until the age of 79, by the way.
Always look at the original document if the image is available!