On this photo you can see the professors of the Department of Structural Mechanics and Theory of Elasticity at Leningrad (St. Petersburg) Polytechnic Institute.
 
 

Professor Galerkin is in the middle, my great grandfather is the one on the right. Photos of my grandparents from father's side you can find on next page.
There are more photos of Andrei and Sokrat Shustikov here.