[Passenger list, "KOOMBANA" 37, compiled 02 April 1912, Adelaide Steamship Company. Noel Butlin Archives Centre, Australian National University, 0186/N46/634]

Fremantle-Derby Cowan, W.L. Adelaide S.S. return half.

[Passenger list, "KOOMBANA" 37, compiled 04 June 1912, Adelaide Steamship Company. Broome Historical Society]

List of passengers known to have been bound for Derby.

From Fremantle [saloon]

...

Cowan William L. Had return half. Teamster for Kimberley

Pastoral Co. Derby. Has sister at Cottesloe

Beach (Mrs. McGillivray) and relations at

Mentone, Victoria.

["The Passengers", The West Australian, Wednesday 03 April 1912, page 7]

FOR DERBY.

Saloon.

...

Mr. W. L. Cowan.

...

["In Memoriam", The West Australian, Thursday 20 March 1913, page 1]

...

COWAIN.--In loving memory of our dear brother, William Laughton, who was lost in the ill-fated Koombana on or about March 20, 1912.

Also our dear mother, who died at Cottesloe Beach on December 20, 1911.

God called them home; it was His will;

But in our hearts we love them still.

Their memories are as dear to-day

As in the hour they passed away.

--Inserted by their loving brother and sister in-law, son and daughter-in-law, John and Nellie.

AB notes:

William had a brother John, married

His mother had died in December