Access Blogger Blogs When Team Member with Signin Credentials Dies/Deceased

Last week we have attended a question by forum members on how to access a Blogger blog when the only team member who has the sign in credentials have passed away or deceased? No one else from the team (or organisation) has the blog sign in credentials to access the said blog. This usually happen if a blogspot blog was set up by an organisation & appointed a team member to handle social media activities -- which includes blog-ing using blogspot.com blogs. If you are managing a web store on a free blog platform like this where you might have several team members assisting you to update the blog/store contents, there may be unkown account credential updates/changes applied -- it may be confusing.