A copy of a photograph of John Hubbard with colleagues at Marconi Space Defence Systems Limited 1989 Math Eitemau Uwchlwytho gan Archif Cyn-filwyr Gorllewin Cymru
A photograph of John Hubbard at Sangamo Weston Limited Math Eitemau Uwchlwytho gan Archif Cyn-filwyr Gorllewin Cymru
