Unfortunately, very little biographical information about Owen Clough could be sourced. It appears that he was the first speaker of the Union parliament in 1910.

Owen Clough and the Society of the Clerks-at-the-Table in Commonwealth Parliaments
The Society was founded in 1932 by Owen Clough, a former Clerk of the Senate of South Africa. In 1903 Clough had accompanied the South African representative to the Delhi Durbar and when Sir Howard D’Egville founded the Empire (now Commonwealth) Parliamentary Association (CPA), Clough became the South African branch secretary which gave him the opportunity to visit Australia and Canada. As a result, on his retirement from the Clerkship of the Senate, Clough determined to do for the officers of Parliaments what D’Egville had already done for their Members. For the next twenty years Clough served the Society he had created as Secretary, Treasurer and Editor. From the beginning the object of the Society was to provide a means by which parliamentary officials could share knowledge of the practices and procedures of the various legislatures of the Commonwealth. This was achieved initially primarily through the annual publication of the Society’s journal – The Table. The first volume of The Table was published in 1932 and it continues to be published on an annual basis to this day