[4] He was also involved in the robbery of a bank in Kaninskii, where the amount taken was entered into the accounts book as being confiscated by "the Volga Union of Independent Socialist-Revolutionaries".

[4] On 20 February 1909, Antonov was arrested in Saratov, during an investigation into a plot to assassinate the commander-in-chief of the Kazan region, General Sadetskii.

He initially stayed with his sister Valentina in the city of Tambov, taking around a month to recover his health from his time in prison.

He had useful connections in the political circumstances, for instance his defence lawyer from his trial in 1910, V. P. Isheev, was now Chair of the Tambov Municipal Duma.

[6] The political nature of the "Kirsanov Republic" is unclear besides its opposition to the Provisional Government, with various sources calling it "bourgeois", "anarchist", "bolshevik" or "blackhundred".

Antonov's men encountered a large crowd outside the municipal Duma building in Kirsanov, their attempt to arrest Trunin was resisted and eventually led to a shootout.

It is known that Antonov eventually joined the Left Socialist-Revolutionaries, who were initially aligned with the Bolshevik regime, however he had little involvement in their party implying this was probably a pragmatic decision to keep his position.

Antonov was buried in Tambov, along with the other members of his group and his brother Dmitriy, near the walls of the monastery Kazan Mother of God on the fifth day after he perished.