Siamanto (born Atom Yarjanian [Western Armenian transliteration] in 1878: his 1910 work is copyrighted to "A.Y. Siamanto") was one of hundreds of intellectuals and political and spiritual leaders who were rounded up on April 24, 1915 and killed. In his case, he was held in detention until August, when he was murdered.

A Short Bibliography

Writings by Siamanto:

Siamanto. Amboghjakan Erker [Complete Works] (Antelias: Tparan Kilikiots Katoghikosutean [Press of the Catholicossate of Cilicia], 1989).

Earchanean-Siamanto, Atom. Amboghjakan Gortse [Complete Poems] (Boston, MA: Hairenik Press, 1910).

Siamanto, Complete Poems (Delmar, NY: Caravan Books, 1979).
This is a facsimile reprint of the 1910 work.

Siamanto, Hayordinere (Paris, 1908)

Siamanto, Hayordinere: Arajin Shark (Zhenev: Kedronakan Tparan, 1905).

Siamanto, Entir Erker [Selected Works] (Tehran: Sasun Hratarakchutiun, 1983).

Blackwell, Alice Stone, "Atom Yarjanian (Siamanto)," chap. in Armenian Poems, Rendered into English Verse (Boston, MA: Robert Chambers, 1917), pp. 141-167.
________, "Atom Yarjanian (Siamanto)," chap. in Armenian Poems, Rendered into English Verse (Delmar, NY: Caravan Books, 1978), pp. 141-167.
This is a facsimile reprint of the 1917 work.

Writings about him:

Anasian, Hakop S., (Erevan: Haykakan SSR GA Hratarakchutiun, 1961).

Berberian, Mannig, "To the Poet Siamanto," Armenian Review 2, no. 1-5 (Spring 1949), pp. 127.

Blackwell, Alice Stone, "An Armenian Poet: Siamanto," Boston, MA: 1917), pp. 231-241.
(We don't own this, so I'm not sure if it is an article in a journal or a chapter of a book: I do know that it's not a part of the 1917/1978 books mentioned above since pages 231-241 of the books above are concerned with Mihran Damadian and Arshag Mahdesian.)

Zardarian, Hrach., Mer kyanke (Erevan: "Sovetakan Grogh," 1982.