Barbara,
A logical place to look would be the 1890 US census, but unfortunately it was destroyed by fire. So I am at loss as to "where next".
Do you know the maiden name of the wife named Eva? that might give us a clue to look further on this side of the Atlantic. any info to indicate if she was American or English? Could the family have been in the USA as early as 1880?
Yes I know I am grasping at straws to help.
Dewey