A couple of riordani Mathews, 1912 (1 Viewer)

[Taphrospilus]

• Tyto novaehollandiae riordani Mathews, 1912 OD here
• Phaps chalcoptera riordani Mathews, 1912 OD here
• Malurus splendens riordani Mathews, 1912 OD here
• Pachycephala grisola riordani Mathews , 1912 OD here
• Neostrepera versicolor riordani Mathews , 1913 OD here

The Eponym Dictionary of Birds claims:

Hugh H. Riodan (d. 1950) was an Australian bird photographer who illustrated Birds of Geelong (1914). As the name McKnight was in danger of disappearing, he took his mother's maden name as his own surname.

The old key:

Hugh H. Riordan (later McKnight) (d. 1950) Australian bird photographer (syn. Malurus splendens, syn. Pachycephala simplex, syn. Phaps chalcoptera, syn. Strepera graculina ashbyi, syn. Tyto novaehollandiae).

I assume information came from his Obituary in The Emu. I assume it is not more than:

The recent death of Mr. Hugh McKnight should be recognized in ornithological circles because he was responsible for many of the photographs reproduced in Charles Belcher's charming book, 'Birds of Geelong.' Mr. McKnight was the son of Hugh Riordan, who married a daughter of Charles McKnight, one of the partners who originally settled on Dunmore, West Victoria, in 1843. As the name McKnight was in danger of running out, the Hugh Riordan of Belcher's book changed his name to McKnight , his mother's surname . — N.L.

So when was he born and what was his middle name?

 

[PScofield]

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Hugh Hamilton Riordan-MacKnight from tree Moore family tree
Record information.

Birth	9 May 1889 Naracoorte, South Australia, Australia
Marriage	1932 Victoria, Australia
Death	15 Apr 1950 Camberwell, Victoria, Australia