Looking for Descendants of William J Seymour Downing 1832

wife eugenie sophia holland
born bagdadchildren edith downing 1878
lillian may downing[1882
nellie downing 1884
arthur downing 1888 gilbert cecil 1895-1915]
fanny eugenie downing 1879
think may have born in bagdad unsure of this but did come to england eventually
any help appreciated
shebalee