[2] He played for Scotland Probables in their trial match against Scotland Possibles in January 1933, the Glasgow Herald noting that the comparison to the Possibles full back David Brown:[3] Of the two full backs, Kenneth Marshall is neater, faster and safer in gathering the ball.
David Brown, owing to this powerful physique, is better than Marshall in getting clear of a mess whether of his own, or another's making.
[3] Nevertheless, despite the Possibles 21–9 defeat, it was Brown that the selectors chose for international recognition, with Marshall having to wait to the following year for his selection.
In addition to his Scottish sporting career (based in Edinburgh) he lived in India and in China in the early to middle part of his adult life, as well as travelling extensively.
He established a coffee farm in the Vumba, in the eastern highlands of Rhodesia, where he spent the latter part of his working life.