[1] He worked at a number of governmental institutions in Baghdad and married Nani Isa Rashshoo where they had 4 children together.

He moved with his family to London in 1982 where he pursued higher education at the University of Exeter obtaining his history Ph.D. for his thesis The Assyrian independent tribes in Tyari and Hakkari and their relationship with the Kurds and Turks.

[1][2] In 1988 Aboona and his family emigrated to Toronto, Ontario, Canada where he resided until his death due to a heart attack on 19 April 2009.

Hirmis Aboona dedicated a number of years writing his Book of 12 volumes The Assyrian After the Fall of Nineveh.

His most renowned work covers the political and religious history of the Assyrian people from the Fall of Nineveh in 612 BC until the beginning of the 21st century.