[3][4] One of their seven children, John, played for Essendon (1971–1974), North Melbourne (1977–1981), and Fitzroy (1981–1982) in the VFL, and West Torrens (1975–1976) in the SANFL.
[16] Over his eleven seasons at Essendon, Cassin was mainly used in the first ruck, resting either in the forward-pocket or on the half-forward flank, combining well with Hugh Torney over Torney's last eight seasons (1936–1943) with Essendon, and his hard and tenacious style of play meant that he was a controversial figure during his career, often having to visit the tribunal and, even once, was attacked on the field by an angry opposition supporter.
[22] He replaced Gordon Lane, who had suffered leg and rib injuries in the preceding week's Preliminary Final.
[27][28] Euroa lost the 1948 WNEFL Grand-Final match against Seymour, at Avenel on 4 September 1948, by two points: 9.6 (60) to 7.20 (62).
Having retired at the end of the 1951 season,[36][37] he was succeeded as captain-coach by the ex-Footscray player George "Binga" McLaren.