Try to find the spot where the photographer was standing.
Sean O D, besides the politics, was also a veterinarian which might explain the fur coat.
https://www.flickr.com/photos/[email protected] “besides the politics”??
From storiesfrom1916 dot com
Kathleen followed in her brother’s footsteps, and went to America along with Hannah Sheehy-Skeffington to fundraise for the Prisoner’s Dependents Fund. After over a year there and in Canada she returned.
The statement Kathleen Boland gave to the Bureau of Military History ends with the line “I got married then.” She had made her contribution to the Independence struggle, and settled into married life in a house on the Clontarf Road.
O'Donovan at wikipedia
I don't see any record of them marrying at irishgenealogy, perhaps they travelled to Rome or somesuch?
http://www.flickr.com/photos/[email protected]/ Sean O Donovan was a Fianna Fail senator for zonks.
This is Kathleen Boland's BMH statement referred to by [https://www.flickr.com/photos/gnmcauley] above.
Harry Boland died in August 1922. Kathleen states at the BMH that after his death she toured the Sates for 14 months, so at least October 1923.
She got married when she returned, so late 1923. This photo is 1923, so I think it is around the time of her wedding.
Here is the registrar's record of Kathleen's death in 1954, aged 63, Sean O'Donovan, Senator, present at death.
Their address was "St. Michaels", 315 Clontarf Road, the redbrick house in this Streetview.