LOL!
I’m sure some illegitimate children were ‘covered up’ for what we would call ‘charitable’ reasons. Human nature has always been given to indiscretions, but also to virtues.
I don’t mean to insult anyone - genealogy is a fascinating study and knowing one’s own gives one a marvelous window on - and personal interest in - history.
My Grandmother, who raised me, was born in 1890, and lived until 1995. Her family stories, handed down from as far back as the Civil War and beyond, were my great fortune to hear and remember.
But we can never know from where/what we really come, in terms of blood.
All we can count on are the positive values and culture we’ve inherited and, hopefully, can pass on.