On his return to Australia in 1926 he joined the Glebe-Balmain RUFC[4] and in July of that year was selected for two Waratahs matches against the All Blacks.

Prior to the start of the Australian 1927 season an invitation from the International Rugby Board arrived in Sydney requesting a New South Wales side tour Great Britain to play Tests against the Home Nations.

A squad of twenty-nine players was selected comprising twenty-eight New South Welshmen and one Queenslander in Tom Lawton, Snr who had come to Sydney to continue his career.

[6] After 1928 Wallace opted out of representative rugby but played at club level till 1930 and acted as a selector and coach for New South Wales and Australia for a number of years.

He toured as assistant manager-coach with a number of Wallaby sides and coached a Waratah team to a surprise victory over the Springboks at the Sydney Cricket Ground in 1937.