A 1952 census describes Depaune as a married Protestant, working as a welding foreman.
[2] In 1951, Depaune was elected to the first Nauru Local Government Council to represent the Buada District.
[7] Depaune was elected to the first Parliament of Nauru in 1968 to represent the Buada Constituency.
[14] He was appointed minister of public works and community services by President Hammer DeRoburt on 12 May 1978.
[15] In December 1978, following a cabinet reshuffle by President DeRoburt, Depaune was replaced as public works minister by Lagumot Harris.