MESSNER in Ecuador and NEUMANN in Australia

We were searching for the heirs of Zikmund (Sigmund) MESSNER in Quito, Ecuador and
Oskar NEUMANN in Australia.

They are related, but we do not yet know how.

1.
Oskar NEUMANN , born on 10 October 1895, and his sister Anna married GLASNER(ova) or GLAESNER, formerly FISCHER(ova) born on 2 March 1908 in Dol. Tuzle, Sarajevo.

Their parents were Eduard and Julie NEUMANN

We have found out that an Oskar NEUMANN born on 30 October 1895, departed for Australia on the SS Ugolina Vivaldi on 28 July 1949 from Genoa - destined for New South Wales.

Elsewhere we have learned that Oskar NEUMANN, passenger number 510, on board the "Ugolino Vivaldi" arrived in Fremantle on 24 Aug, disembarking Sydney (probably a week later). The ship belonged to the Llyod Triestino Line and had departed from Genova. He was accompanied by Anna NEUMANN, passenger #511. Both gave their nationality as "alien".
Their destination:
c/o H. KORNER
95 Winston
Ithaca Rd
Elizabeth Bay
NSW

We have now learned that Oskar was buried in Sydney on December 18th, 1951
His grave number 525 in section 16 at the Rookwood Cemetery in Sydney.

Additional family information:

Oskar NEUMANN was a cousin of Emil BIENEFELD. Emil was born on 25 Nov. 1891 and was sent to Auschwitz on transport Em, 1 Oct. 1944. He survived and was released in Gleiwitz.

Anna GLASNER(ova) (Gläsnerova) nee FISCHER(ova) had been on transport Cc from Prague to Theresienstadt (Terezin) on 20 Nov. 1942, and on transport # Dr on 15 Dec. 1943 to Auschwitz. She survived and was released in Bergen Belsen.

Do you recognize any of this?

Can you guide us in any way?

If you have no information, do you know of anyone else, anywhere, where we can ask?

Please e-mail any information you may have to searchandunitem [AT] lewinsdlondon [DOT] org [DOT] uk

2.
THIS PART OF THE FAMILY HAS BEEN FOUND
Zikmund (Sigmund) MESSNER, born on 31 December 1899 was the son of Markus and Barbora MESSNER . He lived in Quito, Ecuador.

He had a brother Matyas (Matthias) MESSNER (born on 7 October 1906) who lived in Prague
Matyas was married to Ilsa MESSNER(ova), nee SREJM(ova).
Sigmund also had a sister Eliska BIENEFELD(ova), nee MESSNER(ova), born 23 Jan 1900 who was sent to Auschwitz on transport Cr on 23 Jan 1943 and died on 23 July 1943