As for why you couldn't put Peale-12 in I don't know, I did and updated your question. The ID is just Peale-12 and that's it.
Charles Peale is not on your watchlist so he's not going to show up on your family activity feed, that's on your Nav Home Page. He should show up in your contributions list, (he does) but you made those changes three days ago and that's a lot of pages back in your contributions list.