I was wrong.
ThruLines at AncestryDNA in their display of data in my ThruLines descent is indicating something is in my tree that is not. This screen shot from my ThruLines for John G. Trautvetter contains information from my database for every entry that’s in a white box. The gray box information is not in my online tree.
Reading the image, it is saying that John and Theodore Trautvetter are half siblings–after all John M. is my 2nd great grandfather and Theodore is stated on the image as my “half 3rd great-uncle.” This suggests that the two men are half brothers in my tree–after all the boxes are white on the screen indicating the information is from my tree.
Except in my tree these men are full siblings…because that’s how they interacted their entire lives, how they presented themselves, and what their records of birth in Wohlmuthausen, Germany, indicates. There’s one online tree at Ancestry that has their relationship incorrect–indicating that they are half siblings (which they are not.)
But apparently ThruLines is pulling that “relationship” from that tree and modifying it in the display that it claims is from my tree.
If it wants to suggest things from other trees in my ThruLines that are not in my online tree, that’s one thing.
But don’t say all the information about two men is from my tree and then grab a relationship between them that’s in someone else’s tree.