Thank you for spending so much time and effort posting this information. Unfortunately Violet's middle name is Maxwell so I think this is the wrong Violet. Dorothea fits in though and thank you for the detailed information about Robert. I have a lot to work on here.
I think the family, Robert being German, probably had a hard time in London when WW1 broke out due to the anti German sentiment at the time. I wonder if this was why they went to America?
I will follow up the recommendations you have suggested and look up the Social Security Death Index for details of the sisters and Robert John Carl Engel, their brother.
Am amazed at the time and effort people have put in to replying to my post. Many thanks; it is very much appreciated.
Louise
