[Sumo] - Historical Query - List of all Showa Rikishi

[John Tilley <john@tilley.demon.co.uk>]

I would welcome an answer to a question that has me baffled - I
suspect that if I could read just a little more Japanese - the book
would answer this - but I can't. I have two copies of "Ozumo Rikishi
Meikan" by Mizuno and Kyosu - the rikishi are divided into what I
translate as pre-war and post-war - the post-war rikishi start at
Futabayama and are in the order they entered makunouchi - the first of
the post-war rikishi is Futabayama who entered makunouchi in Showa 7 and
retired in Showa 20 - ie 1945.

    However there is overlap with the rikishi at the back of the book -
"Showa Rikishi pre-war" - so we have Asahikawa (entered makunouchi Showa
7 - retired Showa 17) through a total of 55 rikishi to Asahibayama
(entered makunouchi Showa 18 and retired Showa 20). This period overlaps
with 38 rikishi at the front of the book. (Futabayama to Midorikuni).

     Can anyone tell me what is going here please? If I want a list of
all makunouchi rikishi of the Showa and Heisei era in enter makunouchi
order it looks like I have to merge two lists. 

Many Thanks - John

-- 
John Tilley