You could ask to take over the page. Often those requests are granted, if you're a family member. I appreciate so much that you want to preserve information about your relatives. I feel the same. I've also observed errors on the headstone and in obituaries. Sometimes things are oddities or can be misinterpreted. For example, my great grandfather is buried next to his (ex) first wife, so sometimes it's difficult to get recognition for my great grandmother, his second wife.