This was from a news story in 2020:
Hunter Biden’s e-mail account appears to show that his father, former Vice President Joe Biden, used the pseudonym “Peter Henderson” when trading e-mails with his family, the National Pulse can exclusively reveal. While Biden – or “the big guy” – has his real name attached to his private account for some time, it changed around early 2016, going from “Joseph Biden” to “Peter Henderson” in Hunter’s e-mails.

Why is this important? Well it explains the second half of the name that his son Hunter had Joe saved in his iPhone / iPad as - “Pedo Peter”. Draw your own conclusions
https://twitter.com/RaheemKassam/sta...Bj00JRB-aXejug