Sometimes a simple Google search for "Lubaczow" will give me another name of a person from that town.
This time it as a obituary from 2009.
Fred MAYER, born in 1922 in Lubaczow, had died, and from the text you understood that Fred MAYER was a Holocaust survivor, with many camps listed. He was liberated in Buchenwald.
His parents were listed as the late Herschel MAYER and Esther SCHWARTZ MAYER.
It was likely, in my opinion, that the family name originally had been MAJER, and that Fred was the KINNUI, not the Shem kodesh.
From the death register and this website, I found that the spelling of the family name must have been MAJER, and Fred's father Zvi Hersch MAJER had died in 1930.
https://jewishcemeterylubaczow2015.blogspot.com/2015/03/row-4-grave-12-hersz-majer.html
Hersch Zvi's father was Efroim Efraim MAJER. Could Fred have been named after his paternal grandfather?
From the birth register of Lubaczow, we found that Hersch, written Hersz, born 1888, and his wife Ester had at least these four children:
Rachel born 1916
Eidla born 1917
Golda born 1920
Efroim born 1922
So from this we can verify that Fred had the biblical name of Efraim Efroim after his paternal grandfather.
Fred was only around eight years old when his father died, and his oldest sister only 14.
What happened to his mother Ester MAJER?
From a Page of Testimony submitted by Ester's daughter, Fred's sister, we learn that Ester had been murdered in the Holocaust.
