One site. Husband and wife posted for years. Wife passed away. Husband continues posting on his own after wife passes. Goal: can click on a link to 'husband and wife posts' and see only posts by hubby and wife. Goal: Main blog contains newest posts and goes all the way back including all the new husband and all the old husband and wife posts. Currently the old posts are in a separate wordpress install/domain. How do I do this? Thanks in advance for your reply.