Malmberg was born in Hollola to Pastor John Perenius and Edla Olivia Björkstén.

Malmberg then worked as an English teacher at various schools, and from 1898 to 1908 at the Finnish Business Institute.

Malmberg had to leave Finland in 1910 to England because of her participation in the fight against the Russian government.

She represented the Independent Labour Party at the eighth congress of the Second International at Copenhagen in 1910.

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