Good find mab!
Had tried many different combinations on the GRO. Obviously missed that one.
I have found out what happened to the other McGleave children from the 1871 census
Thomas married a Charlotte Bonner in 1893. They are on 1911 census in Newcastle.
John J died age 17 in 1882
There was also a Patrick McGlave 1867-1868, Whitehaven
Margaret, I believe, married in 1889, Wigton
There may have been other children born after 1871
Added
Michael McGleve, born 1871 Wigton MMN Murray