Known to the world as Șerban Voinea (a pseudonym he first used in 1919), Gaston became a Romanian citizen in 1929. He was a Marxist theoretician, seen by Ioanid as one of "worldwide value" and a "classic of Romanian sociology", whose semi-legal activities in the Socialist Party of Romania resulted in prosecution at the Dealul Spirii Trial. Living abroad during much of the 1920s, he was a graduate of several academic institutions, including the Free College of Social Sciences. Returning to Romania in the 1930s, Voinea primarily worked as a radio journalist, and was the theoretical voice of the reformist and pro-Western Romanian Social Democratic Party. Henri Jr was himself a student of Iorga, but not a follower, and alienated Iorga when he stated his preference for rural sociology over history. As a researcher, he brought up empirical evidence which supported some of Iorga's core theses, but criticized his attempts to silence other opponents. Faced with financial difficulties for much of his life, he supplemented his income by working in stenography, which he had learned from his father. To her father's despair, Henriette had a troubled childhood, and shunned academic life in favor of sheer experimentation. She was, by contemporary accounts, an extraordinarily beautiful woman. She graduated from the Bucharest School of Drama, but enjoyed most acclaim as a writer. Her father encouraged her, submitting her debut novel Voica to a literary contest in 1924. From 1931 to 1944, Henriette was married to the poet-translator Ion Vinea, and notoriously shared his passion for hard drugs, which inspired her to write violently modernist novels. From 1925, Stahl's expertise in graphology was harnessed by the National Archives of Romania and its Superior School of Archivists and Paleographers. Stahl's work for those years includes a 1926 textbook of graphology. It was positively reviewed at the time by the social scientist Mihai Ralea, according to whom "given [Stahl's] technical expertise, nobody would have been better suited for the task than him". The textbook notably included writing samples "from virtually all of modern Romania's personalities", alongside character sketches. He had also published, in 1925, the war-themed volume of sketches called Spion ("A Spy"), praised by Ralea for its authenticity. A second edition of Bucureștii ce se duc came out in 1935 at E. Marvan Publishers, illustrated with 175 photographs taken by Stahl himself. Stahl published in 1936 his own contribution in the field of paleography: