What are you looking for, exactly? What was Mary's married name? Where in Bristol County did she live?
There are a few listings for James and Elizabeth Wharmby arriving into the US. On way to Edward, their son, in Illinois. A couple in the New York passenger records, some in the Boston passenger records.
They are in 1881 English census with Mary Ann, age 14. Assume she is the one married in 1887 in Hayfield.
James listed New Mills, Derbyshire as place of birth. All these places are close. Stockport covers both Lancashire and Cheshire, and Hayfield and New Mills are in Derbyshire near to Cheshire (my ancestor was born in New Mills)
Anyway...do you have the married name of Mary? Did she come to the US? What of her children...where did they live, what is their last name?