She was born in 1892, and after the death of her father in 1902, the family lived with Gleeson at her home, at Runnemede, Sandyford Road, Dublin[1] with her mother and siblings, Grace (1898-1982) and Edward (1889-1906).
[2] She appeared in Joseph Plunkett's 1912 play The Dance of Osiris at the Hardwicke Theatre, and designed the sets.
[5] Some of her most notable works are the tapestries for the Honan Chapel, Cork[6][7] in 1917, the vestments for St Patrick's church, San Francisco in 1923, and a carpet presented to Pope Pius XI in 1931.
[9][10][11] She also developed a set of designs for judicial robes for W. T. Cosgrave in 1924, drawing on the Brehon style[12] sketches of which are held in University College Dublin Archives.
[14] After her aunt's death in 1944, MacCormack continued to run Dun Emer Guild until its store on Harcourt Street closed around 1964.