[4] His poems have appeared in anthologies including The Best American Poetry 1998 and The Bread Loaf Anthology of New American Poets, and in literary journals including Poetry, The Paris Review, Denver Quarterly, Barrow Street, New Republic and Yale Review.
[7] Arnold was not found, and the search was then picked up by the international non-governmental organization 1st Special Response Group.
[8] Arnold's trail was found near a high cliff, and he was presumed to have died from a fall near the date of his disappearance.
[9] A collection of poetry, Love, an Index, written by Arnold's partner Rebecca Lindenberg and telling the story of their relationship, was published in March 2012.
[10] A detailed account of Arnold's last few days and the extensive search, entitled An Exchange for Fire, was written by Christopher Blasdel and appeared in the anthology My Postwar Life: New Writings from Japan and Okinawa, published by Chicago Quarterly Review Books, January, 2012.