Steklov was born in Nizhny Novgorod, Russia.
He died in Gaspra[?], Crimea, USSR, (now Ukraine).
See also:
... the town the population is spread out with 20.6% under the age of 18, 5.0% from 18 to 24, 26.8% from 25 to 44, 27.7% from 45 to 64, and 19.9% who are 65 years of age ...