The funeral went as well as a funeral can. J's family is splendid, even in the midst of sorrow. pablod was tremendously kind and drove us there and back. X handled babycare while I supported J. It was hard, but not intolerable, and I'm very glad we went. And metaphortunate was totally right: a baby is one of the best things you can bring to a funeral. Kit was a little overwhelmed at times but mostly their smiley sociable self and quite happy to be smooched and dandled by cousins they'd never met, and their big grins really lightened people's hearts. Also they gave us an excuse to leave when we got wiped out. (And we put them in pajamas before driving home and managed our first-ever car seat–to-crib transfer with a minimum of fuss, because they are the very best baby.)
To get very petty for a moment: someday I would like a vacation where nothing bad happens. I'm 0 for the past 3. But having spent the first week of my vacation on unexpected grief and funeral travel planning, I am at least going to spend the second week of it on being on vacation.