In case you don't have: sisters to your grandfather listed on the iGI , extracted
Elizabeth Jane McCalmont b. April 23rd. 1878 Antrim, Ballymoney ( Cork) as transcribed, see next posting
Mary Isabella McCalmont, b. March 20th 1880 " "
also listings for McAlmont, McCalmont, etc.
A Sarah is listed, sister to Eliza Jane but not as a submission ? Sarah COLVILLE - April 3rd,1871, Antrim
Did you find the CEF signup as it is hard to find ...misstranscribed ...b. 1888 (He was almost 30)
http://www.collectionscanada.gc.ca/databases/cef/001042-119.01-e.php?&id_nbr=140201
Some titles were awarded posthumously in ww2, I imagine they might have practiced this in ww1
http://ni_towns.tripod.com/larne/port_muck_view.htmlhttp://www.panoramio.com/photo/2905660