I recently found out that my great-grandparents came to the US in 1904 through Ellis Island. They brought their two youngest children with them. I can find records of what happened to their children but cannot find any more records of what happened to my great-grandparents. Does anyone have any suggestions about what/where I should do/look next? I looked at census records, ship's manifests and city directories. I have also talked to my elderly aunt to see if she knew what happened to them....to no avail. I guess I have hit the proverbial "brick wall". Any suggestions would be greatly appreciated.