Bauser was born on 25 December 1928 in Kimberley, Cape Province, South Africa.
He started to work at De Beers, a diamond company in the labour relations division.
[5] He played rugby in the lock position for the provincial team Griqualand West in 1951 to 1952.
He played with Springbok fly half /centre Ian Kirkpatrick for the Griqua team.
[6] Griqualand West is area located centrally in South Africa , and is part of the Northern Cape He coached a local Kimberley rugby club called De Beers rugby club from 1958-1971.
Ronnie Bauser was a provincial selector for the Griqualand West Rugby Union in 1969-1970.