(within) 1 hour drive

[GoesStation]

The Revolution of 1905 was the first Russian revolution and it's mostly remembered now because of the Bloody Sunday (January, 9th 1905) when a demonstration of workers was shot on Palace Square near the Winter Palace. In 1905 our city was still St. Petersburg because it hadn't yet been renamed Petrograd. What you're saying about your grandfather seems possible because there were many arrests in 1905 and after that. concerning the imprisonement records they might exist where he was incarcerated, but this won't be an easy thing to find.

He was supposedly imprisoned somewhere in St. Petersburg. Whether that's accurate and the records survived the Bolshevik revolution and the WWII siege of Leningrad is another set of questions.