IN ENGLISH:
I am researching for my wife, whom is russian, and i do what i can to find what she need. Here is what we got so far:

Raisa Sadovskaja was born in 1934 in St Petersburg (Leningrad) on the 1st of may. Her parents where :
Ivan Andreevich Sadovskii born 1905 in Petrograd, died 1948-04-01 in Leningrad. Was apparently a soldier in the great patriotic war.

Ivan ANdreevich Sadovskii had four siblings. Marija (Born 1907 and married someone so her last name was Feodosina) Anna born 1909, Lidja born 1911, Vera born 1918-07-22.

Raisas mother was Zinaida Ivanova Vinogradova She was born in 1912 in St. Petersburg, died 1942 in Leningrad (in the great siege).

This is what we know. Now i wonder if you can help me what to do next to get more info ? ANd to confirm

I can be contacted at e-mail mr_warlock9@hotmail.com