Andrey, I found the site again,
http://www.stela-vnukovo.narod.ru/spisok_1.htm . I looked at two civilian pilots on there and tried to find them in the OBD but they didn't show up. This site didn't give information on the location of the loss and only some of the date.
examples:
Pilots: Konstantin Semenovich Vasil'ev June 1942 MIA
Vladimr Aleksandovich Vasil'ev August 1943 MIA