Serzhant Petr Kulish and Serzhant Vasiliy Strogof

[@irnimal]

Trying to find some information about both these pilots.
Although I have information about their losses, the date of theis losses are confusing.
According to Christer Bergstrom's BC RS vol.3, Serzhant Petr Kulish, from 630 IAP, was lost on 26 September 1942. But checking TsAMO loss files, I came across 4 files that mention him. 2 burial site reports mention his on 26 September. The unit loss reports give the dates as the 23rd on one, and 27 in the other.
Does anyone have more concrete information about this?
The goes for Serzhant Vasiliy Strogof, 611 IAP, 3 reports, 2 dates.
His Service Card reports his loss on 23 February 1943, but the 2 unit loss repots have the date as 23 March 1943.......
In case anyone has any info, Thank you in advance.