Doesn't help with your grandmother, but for your grandfather's first marriage this looks like a possibility, although it depends how sure you are about the first marriage:
From the 1881 Census
Thomas BATTY Head M Male 31 Hull, York, England Waterman
Henrietta BATTY Wife M Female 31 Hull, York, England
Ralph BATTY Son Male 6 Hull, York, England Scholar
Thomas BATTY Son Male 4 Hull, York, England Scholar
Henrietta BATTY Daur Female 2 Hull, York, England
Wilson J. BATTY Son Male 3 m Hull, York, England
Living Kingston-upon-Hull