I am trying to find info on a Sarah Ellen Kaupawich who was born 12 April 1894 according to her death registration and married Walter J Smith in Coventry sometime in 1925. Sarah was the 2nd wife of my great grandfather Walter. Family legend has it that she was his first wife's sister. The first wife was Castancia Abromovitch. She was also known as Constance and her surname has many spelling variations which makes it hard! Castancia/ Constance was born circa 1893 in West Ham, she married Walter, who was from Coventry in 1917 and her death was registered in West Ham in 1925. She left behind 3 young children - the eldest's birth was registered in West Ham in 1917 and the other 2 were registered in Coventry 1921 and 1922. I have found absolutely nothing that would suggest Sarah and Castancia/Constance were sisters. I have found Castancia /Constance on the census records and there was no Sarah.
I cannot find anything on Sarah or much on any Kaupawich person that would fit. I've seen a couple of marriages for what might be sisters of Sarah but have been unable to find anything on any census records or even birth or death records. Hopefully someone might be able to help move me forward
Thank you