I you have a photo that you wish to upload to a memorial page, then you can either click on "Edit" or "Upload Photo" above the biography on their memorial page.

In the box marked "Upload Photos" select a file to upload, and click "Upload" to upload. Once uploaded a preview of the file will appear in the "Upload Photos" box. In order to save the photo, you then need to go to the bottom of the edit page, and click "Submit". If you fail to click submit, the photo will not be saved.