I am trying to track down an American ancestor. She was named Florence Richardson, born in Hoboken, Hudson County, NJ, in 1867. I only know these details because by 1892 she is living in England and married to her husband (Frederick Milner) in Manchester. I know her birth year and location only from the British Census of 1901. I have no information about when (or with whom0 she crossed the Atlantic and I have no information about whether her husband (Frederick) emigrated from England, married her and came back. Does anyone have any information (or any clues I could follow) to find her ..... even the summary data on Ancestry for the 1870 US census appears to show no 'Florence Richardson'.
Any help would be most gratefully received.