In the About section of this profile, there is a story about Jordan being actually Alnod Cilt, son of Harold Godwinson, and it's lovely and romantic, but it doesn't actually hold water, not just because he doesn't show up in the history books, under either name, as a son of Harold's, but since he was born decades after Harold's death. According to this profile.
But it shows up as the foundational story of the family, in a genealogy of the family written in 1962 by Marian Norwood Callam, which is why it's getting repeated here.
things I have actually found:
Alnod Cilt is called a "Thane of King Edward's," in the Domesday Book: https://books.google.com/books?id=kRAtAAAAYAAJ&pg=PA350&lpg...
and here he is again:
https://books.google.com/books?id=2utCAAAAcAAJ&pg=PA760&lpg...
So he WAS alive when Harald was alive, though there certainly isn't any clear connection of him to Edward, except as thane, not as grandson.
Whether the story of Alnod Cilt (real human being! Actually existed! During the time of William the Conqueror!) changing his name to Jordan de Sheppy on account of bathing in the Jordan river whilst on crusade --whether that story has any basis in fact I myself do not believe, because Jordan de Sheppy (real human being! Lived in Sheppey!) was alive, AS INDEED OUR PROFILE STATES, about a hundred years later.
Mention of the fiction about the crusader taking the name Jordan:
https://en.wikisource.org/wiki/Northwood,_Roger_de_(DNB00)
What might well be the beginning of the fiction that Jordan and Alnod are the same person, 1900 (our Victorian historian seems not to have been working out the chronology):
https://books.google.com/books?id=6E5IAAAAYAAJ&pg=PA326&lpg...
At any rate.
This profile, Jordan de Sheppey, did exist, and he existed at the time given in the profile.
But, as far as I can tell, there is no evidence that he is either Alnod Cilt, or even descended from him.
Alnod Cilt did exist, but there is no evidence that he was the son of Harold Godwinson, or even Harold's brother, which some people have also speculated.
So what I think is that we should take out, in all the Northwood profiles, the story in the About section about Harold Godwinson, and add in a note concerning the story.