His father, Featherstone Lake Osler (1805-1895), the son of a shipowner at Falmouth, Cornwall, was a former Lieutenant in the Royal Navy and served on H.M.S. Victory.
Although the crown was represented by a large team including George Burbidge, Christopher Robinson, Britton Bath Osler and others, Casgrain was the only French-Canadian in the group.
Bath | Order of the Bath | Bath, Somerset | University of Bath | Bath Rugby | Bishop of Bath and Wells | William Osler | Bath Abbey | Bath Iron Works | Bath and North East Somerset | Walcot, Bath | Bath, Maine | William Pulteney, 1st Earl of Bath | Team Bath F.C. | Steel Pole Bath Tub | Bed Bath & Beyond | William Osler Health Centre | Turkish bath | Earl of Bath | Bath stone | Bath International Music Festival | Bath & Body Works | Simon Britton | Nan Britton | Lansdown, Bath | Julia Britton Hooks | Bath (UK Parliament constituency) | Barbara Britton | Thomas Thynne, 5th Marquess of Bath | The Child's Bath |