Hi Mark,
As a designer on the Yahoo Personalization team we did a user study to check user perceptions of the word "my." Users tended to dislike use of "my" for anything that they had not actively specified. So if the user had actively changed lists, or bookmarks they were fine with My Lists and My Bookmarks. Whereas when the system made a recommendation for things like articles or movies, saying My Movies, or My Must Read List would not meet their expectations.
Based on our research, using "my" would be appropriate for your labels--except history.