While a member of Reinhardt's resident company at the Deutsches Theatre, Ebert married Lucie Splisgarth (1889–1981) in 1912. They had a daughter, who became a leading German actress and died in 1946, and a son, Peter, who became a stage director and theatre administrator. In 1914 Ebert was called up for military service, but after a year he was released at the instigation of the Schauspielhaus, Frankfurt, which was in urgent need of a leading actor.
While working for Reinhardt's internal team at the Deutsches Theatre, Ebert married Lucie Splisgarth (1889–1981) in 1912. They had a child who became a prominent German actress and died in 1946, and another son, Peter, who eventually became a stage director and theatre administrator. In 1914 Ebert was drafted into the military, but after one year he was released at the insistence of the Schauspielhaus, Frankfurt, which desperately needed an experienced actor.