11 moments
Birth in Yanaka
· Yanaka, Taitō, Tokyo, Japan

Wikimedia Commons · Creative Commons Attribution 2.0 Generic · file Momoko Kōchi was born in Yanaka, then in Shitaya Ward of Tokyo City; the area is now part of Taitō, Tokyo. Coordinates represent the Yanaka neighborhood; no birth building is specified.
Toho branch-opening visit
· São Paulo, São Paulo, Brazil

Wikimedia Commons · Public domain in Japan (PD-Japan-oldphoto); may not be in the public domain in the United States because of URAA restoration. · file Kōchi visited São Paulo with fellow Toho actress Machiko Kitagawa for the opening of Toho's Brazilian branch. The English Wikipedia passage directly states the visit but is marked citation needed on the page.
Japanese-cinema exhibition visit
· New York City, New York, United States

Wikimedia Commons · Public domain in Japan (PD-Japan-oldphoto); also public domain in the United States because copyright was not restored by the URAA. · file Following the São Paulo visit, Kōchi went to New York City to participate in a Japanese cinema exhibition before returning to Japan in February 1958. The source supplies no arrival date for New York; 1958 is the maximum defensible date precision from the itinerary.
A Doll's House at Sabo Kaikan Hall
· Sabo Kaikan Hall, Chiyoda, Tokyo, Japan

Wikimedia Commons · Public domain · file Kōchi played Mrs. Linde in the B cast of Haiyuza's production of A Doll's House at Sabo Kaikan Hall. The archive identifies Kōchi as a cast member and gives two June 1968 performance runs, but does not assign her a particular performance date.
Brighton Beach Memoirs at PARCO Theatre
· PARCO Theatre, Shibuya, Tokyo, Japan
Kōchi was among the cast of the PARCO production of Brighton Beach Memoirs, performed at PARCO Theatre in Tokyo during September 1985. The performance record identifies Kōchi as cast but does not specify which date within the run she performed.
Broadway Bound at PARCO Theatre
· PARCO Theatre, Shibuya, Tokyo, Japan
Kōchi was cast in the PARCO production of Broadway Bound, whose Tokyo run began in December 1989 and continued into January 1990. The source establishes a run spanning December 1989 and January 1990; the card is dated to the opening month rather than a specific individual performance.
CHANEL at PARCO Theatre
· PARCO Theatre, Shibuya, Tokyo, Japan
Kōchi appeared in CHANEL, a PARCO production staged at PARCO Theatre in Tokyo in February 1996. The source identifies Kōchi as cast but does not assign her a particular performance date within the run.
Haiyuza tour in Tōhoku
· Tōhoku region, Japan

Wikimedia Commons · Public domain in Japan (PD-Japan-oldphoto; PD-Japan-organization). · file While touring principally in the Tōhoku region with Haiyuza's production of Yu no Noren, Kōchi reported feeling unwell; this preceded her January 1998 colon-cancer diagnosis. Coordinates are a representative central point for the broader Tōhoku region; the source does not enumerate all tour stops.
Final stage work in Tsuruoka
· Tsuruoka, Yamagata, Japan

Wikimedia Commons · Public domain (PD-US-not renewed). · file Kōchi's appearance in a stage production in Tsuruoka was her final professional work, shortly before her cancer diagnosis. The source establishes 1997 as the year through its reference to the preceding December before January 1998; the specific venue is not identified.
Baptism during final hospitalization
· Japanese Red Cross Medical Center, Hiroo, Shibuya, Tokyo, Japan

Wikimedia Commons · Public domain · file During her terminal hospitalization at the Japanese Red Cross Medical Center, Kōchi was baptized on 29 October and received the baptismal name Maria. The baptism is described as occurring at her hospital bed; the hospital is named in the same source passage.
Death at Japanese Red Cross Medical Center
· Japanese Red Cross Medical Center, Hiroo, Shibuya, Tokyo, Japan

Wikimedia Commons · Public domain · file Kōchi died of colon cancer at the Japanese Red Cross Medical Center in Hiroo, Shibuya, aged 66.