Mkhitar Djrbashian's father Mkrtich was one of the seven founders of the Van Guild of Merchants, which anticipated the possibility of Turkish military actions against the civilian population of their town and started collecting weapons for self-defense.
Mkhitar Djrbashian had two sisters: Sirvard (1904–1990) and Gohar (1921–2000), and a brother Eduard Jerbashkhian (1923–1999), a literary critic, full member of the Armenian National Academy of Sciences (1982) and the director of its Institute of Literature [8] from 1977 to 1999.
Under the supervision of Prof. Artashes Shahinian, Mkhitar Djrbashian was the first to defend a Candidate of Sciences Thesis in mathematics at Yerevan State University in 1945, with some new, original results on weighted Nevanlinna classes of meromorphic functions (see Section 216 in [9]).
In 1949 Mkhitar Djrbashian defended his Doctor of Science Thesis in Moscow State University with excellent references from Prof. Mstislav Keldysh, Prof. Alexander Gelfond and Prof. Alexei Markushevich ru:Маркушевич, Алексей Иванович.
He was the founder of Izvestiya Natsionalnoi Akademii Nauk Armenii, Matematika (English translation: Journal of Contemporary Mathematical Analysis, Armenian Academy of Sciences, Allerton Press Inc.) [1] Archived 2018-03-23 at the Wayback Machine and its editor in chief (1971–1994), the Dean of the Physical-Mathematical and then Mechanical-Mathematical Department of Yerevan State University (1957–1960), and the head of the Chair of Function Theory (1978–1986).