Rosina Rodwell
The obituary of John Rodwell Hillier states that he came to Utah with his parents when he was four years old, which would make the family's travel to Utah taking place in 1864.
She is the daughter of John and Sarah Rodwell who were in the Edward Martin Company of 1856. On the Utah burials database her name is spelled "Rosena Hillier."
The Utah State History Cemeteries and Burials Database confirms her birth and death dates and shows her name as "Rosena Hillier," born in London, England and buried in the Salt Lake City Cemetery.
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Rosina Rodwell (1832 - 1882) Profile