[1] Micheline Kerney Walsh was born in La Celle-Saint-Cloud near Paris on 21 October 1919.

[1][2] Kerney Walsh joined the staff of the Overseas Archives in UCD in 1954 when it was established by Professor Patrick McBride.

She published The O'Neills in Spain and The McDonnells of Antrim on the Continent in 1960, along with the first in her four-volume Spanish knights of Irish origin with the subsequent volumes appearing in 1965, 1970, and 1978.

Her research focused on individuals, such as her contributions to on the women of the Wild Geese, Irishmen in the imperial service, and on Hugh O'Neill in The Irish Sword, journal of the Military History Society of Ireland.

For her work on the historic links between Spain and Ireland, in 1988 she was the first Irish woman to be awarded the decoration Order of Isabella the Catholic.