How old was Ryōichi Hattori in Peko-chan and Densuke?

Shizuko KasagiShizuko Kasagi was 35 in Peko-chan and Densuke as '大中ペ子'.

Birthday: Tue, Aug 25 1914 –
Sat, Mar 30 1985

Shunji SakaiShunji Sakai was 36 in Peko-chan and Densuke

Birthday: Wed, Dec 10 1913 –
Sat, Aug 10 1968

Shinichi HimoriShinichi Himori was 43 in Peko-chan and Densuke

Birthday: Thu, Jan 10 1907 –
Sat, Sep 12 1959

Chōko IidaChōko Iida was 53 in Peko-chan and Densuke

Birthday: Thu, Apr 15 1897 –
Tue, Dec 26 1972

Shunkai MizuhoShunkai Mizuho was 39 in Peko-chan and Densuke as 'Director'

Birthday: Wed, Mar 22 1911 –
Mon, Jun 19 1995

Ryugo NakamuraRyugo Nakamura was 45 in Peko-chan and Densuke as 'Writer'

Birthday: Wed, Jan 10 1996

Ryōichi HattoriRyōichi Hattori was 42 in Peko-chan and Densuke as 'Music'

Birthday: Tue, Oct 01 1907 –
Sat, Jan 30 1993