Unknown Women International Masters I am interested in the history of chess and, looking at the old FIDE rankings, I am a little puzzled by the lack of information about some strong Women International Masters, with a FIDE rating above 2200.

For instance, 


Lazic, Marina
Tazhieva, Lyazzat
Sergeeva, Tatyana 
Update: Kogan, T, she is probably not titled but over 2200 in the late '80s.


Does anyone know them? 
How old are they?  Are they still alive?

N.B. I couldn't find them and they may have been married and changed their names.
Tatyana Sergeeva (Татьяна Сергеева) and Lyazzat Tazhieva (Ляззат Тажиева) are representatives of Soviet/Kazakhstan school of chess.

According to this article from sports.kz, GM Bolat Asanov says:


  В 1996 году в мировом рейтинге женская сборная Казахстана занимала 8-9-е места. К сожалению, победная цепь разорвалась. Резервы «не поспели» и не смогли заполнить образовавшиеся пустоты: ушли из жизни Татьяна Сергеева, Ляззат Тажиева. ...


My translation:


  In 1996, in the world rating, Kazakhstan women national team was around the 8-9th place. Unfortunately, the winning streak was broken. The young blood was not ready fast enough and they were not able to fill the emerging gaps: Tatiana Sergeeva and Lyazzat Tazhieva passed away. ...


Therefore, sadly, these high-rated FIDE players of the 90s are not alive, unless there is some error in the report of "PROSPORT Kazakhstan" Talap Koybagarov or information given by Bolat Asanov.

Lyazzat Tazhieva:


July 2013, Shymkent Chess Tournament in memory of Lyazzat Tazhieva
In Shymkent, there seems to be a sports school named after Lyazzat


Tatyana Sergeeva (this is harder, as the last name is so much more common):


Wiki page in Kazakh lists Tatyana Sergeeva (Zhivaeva) to pass away in 2000. Also, it mentions her participating in the final of World Chess Olympiad in 1996 and 1998.:


  Татьяна Ильиничина Сергеева (Живаева) (1.01.1957 - 15.09.2000 Алм. қ-сы.), ХДСШ-і (1981). Респ-ның 4 дүркін (1977, 1980, 1991, 1996) ч-ны. 2 Рет КСРО ч-тының (1977-т.б., 1981- Алм.) финалында ойнады, Бүкілдүниежүзілік ш-т олимпиадасына (1996 - Ереван, 1998 - Элиста) қатысты.
  
  Қазақстан - спортшылар елі. Энциклопедиялық анықтамалық. - Алматы: "Сөздік-Словарь". ISBN 9965-822-57-3


with an apparent source of "Kazakhstan — Sportsmen Country. Encyclopedia."