Interesting point, but it could be a red herring.
Elizabeth Jane's sister Agnes Wilson sailed to USA 1877 from Avonmouth, Bristol. At some stage she married William Hawley from Syracuse, USA. the 1880 census for USA shows Agnes and William Hawley to be in Bigson County Minnestota. The name has been transcribed as Hanly or could be Hauly, the ages match up and William's background also matches up, their daughter Sadie Agnes Hawley was born Dec 1880 in Minnesota.
regards Ken