I've recently been contemplating a genealogical problem I solved many years ago. My question revolves around whether I did so through the use of direct or indirect evidence.
An immigrant to the U.S. named Johann left no direct evidence for the identity of his parents, nor for the exact location of his birth in Germany. This block was only overcome after finding a copy of the naturalization record for Johann's brother, Frederick. In that document, Frederick listed the exact name of the town of his birth. This information was then used to reference the church records for that town, where the birth records of both Frederick and Johann were found.
Clearly, Johann's birth record is direct evidence, providing both his date of birth and the names of his parents. However, to find that record, the information used came from about his brother, not Johann. Is this considered direct or indirect evidence? To me, this is indirect evidence, but I may be overthinking it, and am starting to question myself. I am not sure, even after reading EE's Quick Lesson 13, discussing Ms. Leary's great research regarding the children of Sally Hemming and Thomas Jefferson. Any help or direction regarding my question will be greatly appreciated.