After retiring as a player, Rush continued to serve Collingwood in a variety of roles over the years, including committeeman, assistant secretary and treasurer.

[7] He eventually resigned from his last official position, that of committeeman, in mid-1950[8] as a consequence of the controversy that ensued over the appointment of Bervin Woods as coach of the First XVIII.

[9] In 1930, Rush performed match-day coaching duties to lead the club to its fourth consecutive premiership, filling in for Jock McHale who was ill; however, following a decision by AFL historians in 2014, McHale is now credited as Collingwood's sole coach in the game for the purposes of coaching statistics.

[10] He is credited with having coined the Collingwood club motto of Floreat Pica ("May the Magpies Prosper").

He died on 13 March 1975, aged 94, and was buried at Melbourne General Cemetery.