“Brother C.K. opened the box and was astounded to find a book in it that contained a long list of names from this father´s ancestry and family to many degress of consaguinity together with an explanatioon of why he had put the record to writing despite the culture of srpeading family through oral transmission.”

Is a sentence more poorly written possible?

Maybe. The following;

“In short, his father had wanted to prevent anyone in his family from accidentally marrying cousins or distant cousins that were far flung because of the dispersion of the colonization.”