Kerenskiy was actually a Trudovik. i.e. a gradualist counterpart to the Socialist Revolutionaries.
During the Revolution, the Socialist Revolutionaries split more than 6 ways:
- Maximalists who wanted to exterminate the exploiting classes
- Right Socialist Revolutionaries, who wanted to continue the imperialist war.
- Center Socialist Revolutionaries, who supported the now-revolutionary war since February 1917 and opposed the takeover by the sovyets. They controlled most of the party lists, so they had the largest share in the Constituent Assembly elections.
- Left Socialist Revolutionaries, who supported the now-revolutionary war since October 1917 and supported the takeover by the sovyets. They allied with left Bolsheviks.
And although the main S-R platform allowed a lot of regional autonomy, some national parties broke away from the main party,
- Right Ukrainian Socialist Revolutionaries. They mainly supported the Rada and the Directory.
- Left Ukrainian Socialist Revolutionaries such as Nikifor Hryhorev. They mainly supported a pro-sovyet insurgency, and pogroms, lots of pogroms. They initially allied with Left Ukrainian Social-Democrats such as Zelenyy, but eventually-- after Hryhorev’s death and Volokh’s break with the Directory-- allied with the Bolsheviks.