"Lawson, Edward Frederick". Oxford Dictionary of National Biography (online). Oxford University Press. DOI:10.1093/ref:odnb/34443.(Subscription or UK public library membership required.) "In 1920 he married Marie Enid (d. 1979), daughter of Hugh Scott Robson, of London and Buenos Aires. They had two sons and a daughter."
oxforddnb.com
"Lawson, Edward Frederick". Oxford Dictionary of National Biography (online). Oxford University Press. DOI:10.1093/ref:odnb/34443.(Subscription or UK public library membership required.) "In 1920 he married Marie Enid (d. 1979), daughter of Hugh Scott Robson, of London and Buenos Aires. They had two sons and a daughter."