Cd lookup for grandmother

[Robert Carlson]

I am trying to find out about my grandmother. Her name was Beda Wilhelmina Swedenberg I am not sure about the spelling it could be burg or borg. The name Swedenberg was given to me by my father but it may be wrong. Her date of birth was 3rd may 1875,6 or 7 she died in Cardiff Wales UK in Oct 1950 aged 74. She had a twin sister named Anna Marie who stayed in Gothenburg.  
   Beda was also known as Beatrice while she lived in Wales. I know Swedish people often changed their names when they settled in another country. Beda had a daughter named Helena. I have found a record of a Beatrice Karlsson in the catholic Saint David's cathedral baptism records in Cardiff. It is a record of Helen's confirmation she was born Aug 26th 1905. This seems right because my father's eldest sister's name was Helena. It would seem that Beatrice had a hard time when she first came to Cardiff. Helena was taken into Nazareth House, an orphanage, when she was six. She was there until she was sixteen. My grandmother had three other children but Helena did not come home, very sad. I know my grandmother kept in touch as she was at Helena's confirmation. My father's baptism is also recorded in the church records.
My grandfather was John Carlson who was born about 1880 in Gothenburg area. They both came to Wales about 1900, both worked in the Merchant Navy. He was a donkeyman and she a stewardess. John was killed in late 1917 or early 1918 when his ship was torpedoed.  
 Please help if you have any information or can give me any leads for my search. I understand there is a CD Goteborg emigranten with databases of Swedish records but I don't have access to this data.
Thanks  
bob.carlson@talk21.com