I am a committed amateur genealogist, like many of you. I maintain and research my various trees daily. It's a huge pleasure and a way to focus my mind. I also find it to be a creative process.
Some times I find amazing things, relationships to historical figures for example. Today I found something disturbing and had to make a decision. I was investigating the family of the American adventurer Merriweather Lewis (1774-1809), who is my 4th cousin, 6 times removed. I am interested in that Lewis family because it was prolific and accomplished. I also would like to find a family relationship, if there is one, to a Lewis woman who married a famous frontiersman. I'm thinking she doesn't really belong in THIS Lewis family, because this Lewis family was "hoity toity" and she was not. Anyway, I was looking around with time and abandon, as only a retired person can do.
I discovered that Merriwether Lewis had two cousins (both 1st cousins, one generation removed) who were infamous murderers of an enslaved person named George. Isham Lewis (d. 1815) and Lilburne Lewis (d. 1812) were actually nephews of Thomas Jefferson, their mother Lucy Jefferson Lewis being Jefferson's sister.
I was horrified to be even distantly related to these monsters, so I deleted them from my tree. Then I thought about it, really hard. Why should they not be marked forever as racists and murderers? So I put the truth back in. Now if anyone clicks on them it says: Isham Lewis , murderer of Slave George, and the same description for Lilburne Lewis.
The truth can be horrifying, but it should never be ignored.