Born peasant Vinco Vaičiūno and Mary Šarkaitės-Razumienė-Vaičiūnienės family. The family had seven children: Ignacio, George, Stanislav and Hannah Razum and Peter, George and Victor VAIČIŪNAS. Juozas Vaičiūnas Stanislav Razumas become priests, Victor Vaičiūnas - psychiatrist and Peter Vaičiūnas - one of the first emerging professional Lithuanian theater organizers, directors and playwrights. A significant role played by Mr. Vaičiūnas and his nieces, Vaičiūnas daughter of the poet Judith Vaičiūnaitė life, they became the first critic and adviser.

1907. Ukmerge completed four-year school year 1914-1918. lived in Petrograd, he studied psychoneurology Institute and the University of Petrograd, worked in educational and cultural institutions. Dramatic debut in 1916. 6 March. Theatre Krivoje Zerkalo ", where the charity evening was staged his first play - flowered withering flowers.

1920. He returned to Lithuania. 1920-1923 m. Drama vaidyklos, the State Drama Theater Authority member. 1921. Teofilija Dragūnaitė actress married, had a son, Arno. 1930-1935 m. Vytautas Magnus University folklore commission secretary. 1931-1932 m. and 1935-1939 m. State Theatre repertoire Commission. Since 1941. He worked LMA Library in Vilnius, for a time was its director. After World War II, the Writers' Union board member, worked LMA library.