I am trying to trace my grandmother's twin brother's family. John George Wadlow emigrated to the US from England and married Gertrude Spreckels. They lived with Gertrude's German born parents in Kings, New York according to the 1940 census. They had a son named Jack (incorreclty listed as Jose in some 1940 records). I am now at a dead end as I can find no further mention of Jack Wadlow. He was born about 1937, so he could be alive and may have married with further family. I'm from the UK and have no idea where to search next. Any ideas would be much appreciated. Thanks for reading this!
I think they lived in Ridgewood Ave in 1940. Jack Wadlow was born inn Brooklyn according to the 1940 census.