I know this is your old post, but I have just recently gotten new information about my Grandfather John Tierney and his sister Julia Tierney.
Julia died June 1910 under suspesious circumstances. Her brother John thought it was poison/murder. His wife Margaret did also. I think your post was about them. John and Margaret were dissagreeing on Julia's marital status. All very strange. ...but I was told by my mother that Margaret was kind of strange.
Do you have a copy of this article or can you direct me to the source?