Looking at this again, I’m wondering if McMaster was just a middle name for the following Jean/Jane Duff, as opposed to maiden name, which seems to be Beasant - so maybe not your folk at all! Anyhow, in the following, I’ve extracted the key family references, maybe enough here for you to rule them in or out ...
Belfast Telegraph, 15 September 1958
BEASANT - September 13, 1958, at Royal Victoria Hospital, Samuel McMaster, dearly loved Husband of Elizabeth Beasant, 191 Shore Road ... Deeply regretted by his sorrowing Wife, Son Sammy and Daughter May ... Deeply regretted by his sorrowing Parents, Samuel and Mary Beasant and Brother John, 265 Shore Road ... Deeply regretted by his loving Brother Sydney, Sister-in-law Elsie and Niece Donalda, 41 Mineral Street ... Deeply regretted by his loving brother Richard and Sister-in-law Belle, 46 Ballyclare Road, Glengormley ... Deeply regretted by his Brother and Sister-in-law Victor and Doreen Beasant, 24 West Link, Larne ... Deeply regretted by his Brother and Sister-in-law George and Sadie Beasant, 22 Carnreagh Bend ... Deeply regretted by his loving Sisters, Grace and Ethel, Brother-in-law George Hurl, Nephews and Nieces, Toronto, Canada ... Deeply regretted by his loving Sister and Brother-in-law, Jean and George Duff and Family, 61 York Park ... Deeply regretted by his loving Sister and Brother-in-law, Margaret and Andrew Ferran and Family, 29 Shore Road ... Deeply regretted by his sorrowing Sister-in-law and Brother-in-law, Ellie and Eddie Roddy and Family, 20 Copperfield Street, also his friend Mrs. Roddy, 39 Mackey Street ... Deeply regretted by his sorrowing Uncle and Aunt, Mr. and Mrs. Christopher Beasant and Family Circle, 111 Palmer Street ... Deeply regretted by his loving Uncle and Aunt, Richard and Phyllis Bell and Cousin Margaret, 3 Dunoon Drive, Bolton, Lancs.
Belfast Telegraph, 14 May 1962
BEASANT - May 12, 1962, at the Belfast City Hospital, SAMUEL McINTYRE, dearly beloved husband of Mary Jane Beasant, 265 Shore Road. Funeral from his son-in-law’s residence, 27 Sheringhurst Park tomorrow (Tuesday) at 2.30 p.m. to Carnmoney Cemetery. Deeply regretted by his sorrowing Wife and Son John ... Deeply regretted by his sorrowing Son Sydney, Daughter-in-law Elsie and Grandchildren Donald and Sydney, 41 Mineral Street ... Deeply regretted by his sorrowing Son and Daughter-in-law Victor and Dorothy Beasant, 25 Kinbayne Crescent, Greenisland ... Deeply regretted by his son George, Daughter-in-law Sadie and Family ... Deeply regretted by his sorrowing Son and Daughter-in-law, Richard and Belle, 46 Ballyclare Road Newtownabbey ... Deeply regretted by his sorrowing Daughter and Son-in-law, Jean and George Duff and Grandchildren, 61 York Park ... Deeply regretted by his sorrowing Daughters and Sons-in-law, Grace and George Hurl and Grandchildren, and Ethel and Martin Bull and Grandchildren, Toronto, Ontario ... Deeply regretted by his sorrowing Daughter and Son-in-law, Margaret and Andrew Ferran and Grandchildren, 27 Sherringhurst Park ... Deeply regretted by his sorrowing Daughter-in-law Betty and Grandchildren Samuel and May ... Deeply regretted by his sorrowing Brother, Christopher, Sister-in-law Mary, Evelyn and Family, 111 Palmer Street ... Deeply regretted by his sorrowing Sister, Ethel Beasant, Kinvara Cottage, Upper Gransha Islandmagee.
Belfast Telegraph, 13 April 1964
BEASANT - In loving memory of my dear mother, MARY JANE, who died (result of an accident) April 13th, 1963, also my dear father, SAMUEL, whom God called Home May 12th 1962. Ever remembered by their loving Daughter Ethel, Son-in-law Martin and Grandchildren Kathy and Mark, Cooksville, Canada ... Ever remembered by their loving Daughter Grace, Son-in-law George and Family, Agincourt, Canada ... Always remembered by their loving Daughter Margaret, Son-in-law Andrew and Family, 27 Sheringhurst Park ... Ever remembered by her Daughter and Son-in-law, Jean and George Duff and Grandchildren, 61 York Park.