She organized an event at Cooper Union in 1914, where Lincoln Steffens, Zona Gale, Edna Ferber and many other pro-suffrage authors gave readings and sold autographed books for the cause.

She and Heterodoxy founder Marie Jenney Howe wrote a satirical one-act play, Telling the Truth at the White House (1917), based on suffrage protests in Washington D. C.[6] A few months after the play was published, Jakobi was arrested in November 1917 while protesting at the White House; she was sentenced to thirty days at Occoquan Workhouse.

[7] She described the experience in stark terms that were quoted in suffrage literature of the time, and for decades after: "There was no light in the room, only one in the corridor.

"[8][9][10] Jakobi wrote other short plays, including The President (1921), Poet of His People (1917), Donna Juanna (with Marie Jenney Howe, 1917), The Dragon's Tooth (1917), Chinese Lily (1915, set in a women's prison), and And Ye Gave Me a Stone (1915).

[11][12] When she was in her eighties, Jakobi wrote a new play The Adamses (1952), about sharecroppers, which was produced by the Hedgerow Theatre near Philadelphia.