Elizabeth Marshall born in England abt 1840, probably in Lincolnshire around Splading married John L. Oswalt. He was born about 1847 in the US. He appears with his wife on the 1871 Ottawa, Ontario census with their daughter Fally Ellen age 9 months born in the US. John Oswalt was a Telegraph operator. He and his wife seem to disappear in further census but the child remained in Ottawa the rest of her life living with the Marshall family. She never married and died in Ottawa in 1950.Does anyone know who John L. Oswalt was and what happened to him and his wife.