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You could simply remove your name from the pages The sitelink example from Apple is at Google's discretion. They usually only do it for sites with high authority or where they're sure of your intent and have identified an entity associated with your search. I would not mess with your robots.txt. Just decide which pages you do or don't want to show up for your name. You could try something like {Type of photos) photos by {Your Name} for pages you DO want to show up. Generally lots of search presence is great, so I wouldn't worry. You COULD de-optimize, but it seems unnecessary.