Hello
Yes I'm the lady Nina asked to look into this .I've given the info to my friend who is her friend at the chapel and it will be on it's way to you.
But in the meantime here's a quick summary of what I found.
Wilhelm and Ida Marburg had five children.Ida died between 1915 and 1921.Wilhelm was a kaufmann or business man in Romestadt or Rymorov in Czech.The family spoke German.Wilhelm hired a housekeeper after his wife's death to look after the children.He himself died in 1943 in a camp.
The eldest child
Ing Ernest was born 8.4.1906 and married a Greta Spitz and had a son Raoul .Ernest was a chemist in Svitany and moved to Prague after the Germans annexed the Sudatenland in 1938.
The whole family died in the concentration camps.
Second was
Alfred Marburg born 29.9..1907 who married Irene Stern in 1934 and was Suzanne's father.He worked in agriculture and forrestry and the once again moved to Prague in 1938 ,this time from Romestadt.
As you know both him and Irene died in the Holocaust.Photos of the two of them are again at Geni.com or you can go to
www.holocaust.cz/em/database.
Third son was
Friederich Konrad Marburg born 6 Feb 1915 who was a chauffeur in Prague and married to a Marie Landsberger. Her two sisters, Eva and Franziska, survived the war and have put photos of the couple on line at geni.com. He was called Gandhi.They both died in the camps.
The sister in laws are also on the same website and heritage .com (which I can't get onto because I don't have a sub).
That leaves Alfred's two sisters.
Rosa Marburg born 25.7.1910 was a survivor of Terezenstadt and went on to marry a Pavel Kollman.
Alice/Alicia Marburg born 13.8.1913 was in Seved Camp and seems to have been liberated in 1944 .She gave her previous address as Nitra. She was called Lisa .She then married a Mr Salner and had one child.
It looks like Rosa's daughter and granddaughter have put their family tree on Geni.com.
I'm not going to repeat the few details on there because I'm not sure if they both are alive or not.
The granddaughter does look to be alive and living in Prague.If she is the same person I found then she is a Disability rights campaigner and film maker.
There is a way to contact the family through Geni.com and hopefully they will confirm they are the 'right 'ones.
There are other trees of the brothers both on Geni .com and Wikitree so presumably some connection to the people who posted them.
Irena's sister Eva and her husband Adolf and child Josef are also on there.The nearest surviving relative on that side is the niece of Adolf Behavy a Edith Dasch born 1912 who went to London and then to Canada.It seems she had no children and her tree is put on there by her husband's family.
There was a brother in law of Marie Landberger,(Friedrick's wife)who made it to England and was in Leamington Spa c 1945 . Dr Zedenek Belsky born 1907 .He was asking for the rest of his household including Freiderich and Marie to be evacuated to England ,but I have no details of him after that.
All the best .
Ciderdrinker