Yes, according to my records, Samuel Paul Hart died 17 Dec 1935, Manhattan, although I don't have his actual death certificate.
Samuel's brother Henry William Hart married Mary Ann Stimpson, a sister to Addie. Mary Ann died 23 June 1953, presuming Red Deer, Alberta as that is where Henry William died Nov 2, 1955. Their daughter Florence Mary McMann died 18 July 1991 in Calgary, Alberta, presuming that is where George McMann, her husband, died 11 June 1978. I don't know if George and Florence had any children as they married Apr 6, 1924 (haven't had a chance to look as yet).