I do not recall ever interacting with Dirk, but my thoughts are with those who knew and loved him.
A candle is lit for remembrance.
And, if I may paraphrase from one of the greats (John Donne) with what could (should?) be a genealogist's creed:
No person is an island, entire of itself; every person is a piece of the continent, a part of the main . . . Any person’s death diminishes me, and us, because I am, we are, involved in humankind.