I'm looking at the family of Joseph John Kearns, and have misplaced a couple of them. JJ was one of the three sons of bookbinder Thomas Kearns and Margaret Kearns, née O'Brien, who married in 1890. They had these three lads: JJ, Francis Joseph and Hubert Wolfe Tone, and then disaster struck: Thomas died in 1899 of enteric fever.
In the 1911 census Margaret, JJ, Frank and Hubert are again together.
1911 census of Ireland:
http://census.nationalarchives.ie/pages/1911/Dublin/Rotunda/Sherrard_Street__Lower/52670/But in the 1901 census, Frank, aged 10, seems to be in the O'Brien Institute
https://en.wikipedia.org/wiki/O%27Brien_Institutean orphanage in Marino, north Dublin
1901 census of Ireland:
http://census.nationalarchives.ie/pages/1901/Dublin/Clontarf_West/Marino/1271228/and JJ, aged seven, in the Vincent de Paul orphanage in Glasnevin:
https://www.childrenshomes.org.uk/GlasnevinStVincent/1901 census of Ireland:
http://census.nationalarchives.ie/pages/1901/Dublin/Glasnevin/St__Vincent_de_Paul_School__Prospect_Road/1273278/ This was not unusual at the time: if a family lost a breadwinner the surviving parent was often "encouraged" to send one or more children to orphanages "temporarily" so that the parent could "get back on their feet". (Often, those children would be hired out to farmers when they got older, supposedly to learn a trade, but in fact often as child slaves.)
Now, what I'm wondering is where Margaret and the baby, Hubert (or later Hugh) went in between 1899, when her husband died, and 1911, when she had, unusually, succeeded in reuniting her family, and was living with them in 18 Sherrard Street, only steps away from where she and Thomas started their married life, in 6 Sherrard Avenue. (Hubert was born and Thomas died in 40 North Summer Street.)
Could they have left the country? I can't see them anywhere in Ireland in the 1901 census.