He headed the history department for 23 years, beginning in 1949, and retired in 1972.
He headed the Petrograd variety actors' union for three years.
He worked there until the end of his life, and headed the museum for nearly thirty years.
And in 1996, he switched emphasis again, heading the personal computer division for almost two years.
Theodosius headed the monastery for 8 years after his death.
He published this magazine on his own expenses and headed it for 40 years.
David's grandson Morton May became the chairman in 1951 and headed the company for 16 years.
In 1914, he founded a workshop of fine mechanics at the department and headed it for five years.
He headed Nancy as manager for nine consecutive years since 2002.
He headed the military intelligence in Norway for almost twenty years, from 1946 to 1965.