This is the family of Alexei's paternal grandmother. The Dudov family.

From left to right:

4 - Alexey's great-grandmother

5 - Alexey's great-grandfather Ivan Martynovich Dudov

7 - Alexei's grandfather, Alexei Alekseevich Strelnikov (1918-1966), after whom (50%) Lesha is named. (maternal grandfather was also called Alexei)