He was educated at Ardwyn Grammar School and the University College of Wales, Aberystwyth where he gained an MA degree.

He defended the seat at the 1929 general election as a Liberal, beating Labour, Conservative and Welsh nationalist opposition with a majority of 3,460.

[4] At the next election in 1935, Owen again stood as an Independent Liberal against Labour and nationalist opposition, increasing his majority to 1,497.

Gwilym became a junior minister at the Board of Trade and Owen became a government whip, taking the post of Comptroller of the Household.

Owen had a home in north Wales and played an active part in local and political life there.

[12] Owen was sometime Chairman of Caernarvonshire and Anglesey Territorial and Auxiliary Forces Association and County Army Welfare Officer.