Dad -
I didn't really call you that while you were alive, and it feels strange to call you that now, but I didn't know any other way to start this letter.
I've become a person who grumbles at roadside memorials for victims of traffic accidents but who writes something about you every year on the anniversary of your death. I wondered about that for a number of years before I realized that I was closer to your death than I was to your life, and I've spent the years since trying to come to terms with your absence.
This entry covers it better than most: