His son George went into a similar profession and eventually became a senior partner in Roose, Mahon & Howorth, a leading accountancy firm.

By 1879 George Mahon was regularly attending the Great Homer Street Wesleyan Chapel in Everton where he provided musical accompaniment to the choir playing an American organ.

The lecture was illustrated through the medium of a lantern microscope showing insects and pond life and was much appreciated by a large audience.

He reorganized the district body after the defection of Liberal Unionists who were opposed to Gladstone's proposed solution to the Irish Question.

Reverend Ben Swift Chambers, minister of St. Domingo Methodist New Connexion Chapel, encouraged young members of his congregation to play cricket.

[2][4] Due to the rising rental costs of Everton's then home ground Anfield, Mahon was key to the decision to move to Mere Green, which later became known as Goodison Park.