half brother daniel park custis. his father, john custis, had a child, an enslaved woman who he acknowledged as his son, which was unusual at that time. he left him property. he wanted to leave from the house. he freed him. he management at him. and the fact that a lawyer at this time is writing to daniel park custis and acknowledging him as your brother is very historically significant. even if it's crossed out and whether it was crossed out by him or later is not quite as clear. but you can see why. accurate transcription can make a difference. next slide, please. this is an example from martha's handwriting. it says, i have had a very dull time. i had a very dark time. is field's transcription of this. and if you take a close look. next slide, please. it's blurry. i'm sorry. i know it's so big, but if you take look at the end of where that key is, if that's the word dark. compare that to the k in another part of the letter with i think those look different. and if you looked, we have to look at every single letter