Stupid theory here but the triplets' dad is someone the family wants to forget. Badly. He has no photos, he's never mentioned by anyone, and photos of the three as eggs doesn't show him. Gonna go out on a limb and say that he might've been an even worse Goldie. Maybe one day he said he'd stop double crossing them and settle down with Della, married her, knocked her up, then left. Scrooge might've been so pissed he practically scoured the guy's name from the books.
>inb4 it's donald
fuck off incestfags