I'm still perusing the thread, so I can be mistaken, but I wonder if this book has been already mentioned:
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Historical Dictionary of the Russo–Japanese War
Rotem Kowner
Historical Dictionaries of War, Revolution, and Civil Unrest, No. 29
The Scarecrow Press, Inc.
Lanham, Maryland • Toronto • Oxford, 2006
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which seems to be now
de facto -if not
de jure- in the public domain, because it can be very easily found on the web (as
aa30.rar), and it is indeed quite relevant for Distant Guns' RJW (that I recently discovered runs in
Linux better than in windows).
Also worth of download (of course -ça vas sans dire- only if legal in your country
or in the country of the proxy server you are using) is
Osprey - Essential Histories 031 -The Russo-Japanese War 1904-1905
which seems to have been spread everywhere, all over the web.
Some more books that may be of interest in order to get the right "mood" for DG_RJW (but are also more hard to find on the web):
"The battle of the sea of Japan: The official version of the Japanese general staff", translatedd by W.Y. Hoadley, USMC.
United States Naval Institute, Proceedings, Vol.40/4, 07/08-1914
"Eskadrennyi Bronenosets Retvizan", S.A. Balakin, Moscow, Arsenal Collection, 2005 (Retvizan, 1st Squadron)
"Eskadrennyi Bronenosets Borodino", V. I. Gribovskii, Moscow, Izd-vo Gangut, 1995 (Borodino, 2nd Squadron)
"Eskadrennye bronenostsy "Gangut" i "Navarin", M.A. Bogdanov, Leningrad, Leko, 2007 (Only the Navarin,2nd Squadron, is relevant for RJW)
"Eskadrennyi Bronenosets Sissoi Velikii", M.A. Bogdanov, Leningrad, Leko, 2004 (Sissoi Velikii, 2nd Squadron)
"Bronenosets "Admiral Ushakov": Ego put' i gibel'.", N.N. Dmitriev, Leningrad, Al'manakh Korabli i srazheniia, 1997 (Ushakov, 3rd Squadron)
"Armstrong Battleship built for Japan" P. Brook, Warship International, Vol. 22/3, 1985
"Technical Lessons of The Russo-Japanese war", D.K. Brown, Warship, London, Convay Maritime Press, 1996
"Aboard Orel at Tsushima", S. McLaughlin, Warship 2005, London, Convay Maritime Press, 2005
"Tsushima", A. Novoy-Pribikov, New York, A.A.Knopf, 1937
"The battle of Tsushima", V.I.Semenoff, New York, E.P.Dutton, 1907
"The Imperial Russian Navy" F.T.Jane, London, Conway Maritime Press, 1983.
"The Imperial Japanese Navy" F.T.Jane, London, Conway Maritime Press, 1984.
"Russian Battleship VS Japanese Battleship", Yellow sea 1904-1905", R. Forczyk, Osprey 2009 (most recent book related to RJW)
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Enjoy the search!