[citation needed] MacIntyre served in the Sri Lankan Air Force from 1961 to 1967, acted as the Director of the drama school at Aquinas University College in 1968 and 1969.
Ludowyk's He Comes from Jaffna in a production in Sydney, Australia, updating the script to reflect changes in social values.
[3] In 2009 Macintyre wrote "Antigone in Sri Lanka as IRANGANI" A tragedy of our times derived from the ancient play of Sophoclese.
In 2009 a PhD thesis on "Diasporic Longing and the Changing Contours of Resistance in The Plays of Ernest Thalayasingham Macintyre" was successfully submitted to The University of Madras by T. Sumathy.
MacIntyre's emigration in 1973 brought a lull in creativity in the English theatre in Sri Lanka.