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I believe the last photo is Alexey Leonov possibly with Pavel Belyaev (not really sure), of the Voskhod 2 mission. Leonov was the first person to do a spacewalk.

https://en.wikipedia.org/wiki/Alexei_Leonov

https://en.wikipedia.org/wiki/Pavel_Belyayev (some interesting tidbits about the Voskhod 2 mission there)