I've noticed that recently (starting a few months ago) some of my contacts started being displayed as "Jane personal" instead of her actual name like "Jane Doe" in emails.
I find this format strange, but I can't figure out any way to get it to return to the old way. In addition this appears to only have happened to one of my contacts, but her name appears correctly in Google contacts.
Other people who she emails has mentioned seeing the same behavior--so it could be related to her Gmail account in some way.
Another interesting tidbit that I just noticed is that this doesn't occur 100% of the time. Some emails still have the name displayed in the "Jane Doe" format.