Ginger, so sad to read your dad never put the Journals in your name. This is so upsetting to me. Family can be very cruel, I know my brother was aided by his nasty cruel wife who called my mother "hey you!" I had to control myself from hitting her. My mother was shy, would never stand up to her.
I don't know what else they stole when my Father died. Does your sister have children you are close with? Do you think they would bring you the Journal so you could read it without anyone knowing? Just a thought. Joining hands